antagonist medical definition muscle

A muscle that constricts the pharynx; it is important for swallowing. 225. Nose: depressor septi, nasalis, and procerus muscles. Origin: infraglenoid tubercle of scapula, posterior of proximal humerus, posterior of distal humerus. Define muscular antagonist. Origin: inside front lower margin of maxillary part of orbit. Insertion: lateral side of middle of radius. Body System: General Bridges occur between thick and thin filaments and in contraction the bridges pull thin filaments past the thick ones using a ratchet mechanism. Tongue muscle. Nerve: trigeminal (CN V). Origin: spinous processes of vertebrae T7-S3, thoracolumbar fascia, iliac crest. Dorsal: dorsal interosseous, extensor digitorum brevis, extensor digitorum longus, extensor hallucis longus, and tibialis anterior muscles. Skeletal muscle cells contract more forcefully than smooth or cardiac muscle cells. The muscles between the ribs, lying beneath the external intercostals. That which opposes or resists the action of another; noting certain muscles, drugs, etc., which tend to neutralize or impede the action or effect of other muscles, etc. Action: adducts, flexes, and medially rotates thigh. Insertion: olecranon process. Nerve: radial (C5-C7). Insertion: iliotibial tract of fascia lata, gluteal tuberosity of femur. Primary tissue, consisting predominantly of highly specialized contractile cells, which may be classified as skeletal muscle, cardiac muscle, or smooth muscle. For every direct action made by a muscle, an antagonistic muscle can cause an opposite movement. Nerve: ulnar (C8-T1. My height is 5’5” and I weigh 176 lbs. Insertion: into itself and skin of lips while encircling mouth. Antagonistic muscles definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Nerve: musculocutaneous (C5-C6). Insertion: extensor tendons of toes. The abductor or flexor muscle of the thumb. Insertion: hyoid bone, mylohyoid raphe. Action: flexes forearm. Origin: lateral two-thirds of fibula. The thick filaments are composed of the protein MYOSIN and the thin filaments of ACTIN. 9 synonyms of antagonist from the Merriam-Webster Thesaurus, plus 27 related words, definitions, and antonyms. Action: tenses (stretches) vocal cords. Nerve: median (C6-C7). Back muscle. It depresses the sides of the tongue and is innervated by cranial nerve XII (hypoglossal nerve). Action: rotates arytenoid cartilages for vocalizations. Origin: proximal ends of tibia and fibula. It flexes and adducts the thumb (brings it across the palm) and is controlled by the median nerve. Smooth muscles cannot be consciously controlled, and this form of muscle tissue is called involuntary muscle. Action: extends leg. Pectoralis major, pectoralis minor, serratus anterior, subclavius, subscapularis, or teres major muscle. Action: closes mouth, protrudes mouth, moves jaw sideways. In clinical practice, referred to as the lateral rectus muscle. Skeletal muscles contract to act on each joint that it crosses. Origin: upper edge of manubrium, middle of upper clavicle. Actions: raises ribs 1-2, bends neck ipsilaterally. Insertions: upper surfaces of ribs 1-2. Insertion: medial condyle of tibia. Forearm muscle. Insertion: lesser trochanter of femur, psoas major tendon. Insertion: base of proximal phalanx of digit 5. Middle ear muscle. Origin: internal surfaces of lower six ribs, xiphoid process, vertebral bodies L1-L3. Insertion: greater tubercle of humerus. Origin: medial epicondyle of humerus, coronoid process of ulna. A ridge of myocardium on the inner wall of either atrium of the heart. Origin: lateral epicondyle of humerus, proximal edge of ulna. Extraocular muscle. Action: flexes hand. antagonist definition: 1. a person who is strongly opposed to something or someone: 2. a muscle that performs the…. Insertion: central tendon (of diaphragm). Action: pulls scapulae toward each other. Origin: flexor retinaculum of wrist, scaphoid and trapezium bones. Insertion: upper part of greater trochanter of femur. Muscles that pull against gravity to maintain normal posture. Nerve: tibial (S1-S2). Here is what agonist/antagonist muscle groups are and how they help build muscle faster than traditional workouts. The movement of agonist/antagonist muscle groups is coordinated by the central and peripheral nervous system. Typically it is a mass of fleshy tissue, attached at each extremity by means of a tendon to a bone or other structure. Nerve: tibial (S2-S3). Nerve: axillary (C4-C6). The chewing muscle, which is innervated by the mandibular division of the trigeminal nerve (CN V). Action: flexes big toe, plantarflexes foot. An example of an antagonistic pair is the biceps and triceps; to contract, the triceps relaxes while the biceps contracts to lift the arm. Hand and foot muscles. Cardiac muscle is innervated by both sympathetic and parasympathetic autonomic motor axons. Neck: platysma. Action: medially rotates arm. Antagonist (muscle) synonyms, Antagonist (muscle) pronunciation, Antagonist (muscle) translation, English dictionary definition of Antagonist (muscle). Under the microscope, the ends of the blocks look like lines, making skeletal muscle cells appear to have regularly arranged striations. Nerve: oculomotor (CN III). Forearm muscle. It originates from the lateral epicondyle of the humerus, crosses the back of the elbow joint on the same side, attaches to the lateral surface of the olecranon process and the adjacent surface of the ulna. Action: allows lens to become more curved to focus on near objects. Antagonist definition is - one that contends with or opposes another : adversary, opponent. Origin: adjacent facial muscles that surround mouth. Origin: tendinous ring around optic nerve at rear of orbit. Nerve: accessory (CN XI), spinal C2. Action: protrudes and depresses tongue. The three general classes of muscle cells (myocytes) are skeletal (striated), cardiac (striated), and smooth; most of the muscle in humans is skeletal. Forearm, posterior: abductor pollicis longus, anconeus, brachioradialis, extensor carpi radialis brevis, extensor carpi radialis longus, extensor carpi ulnaris, extensor digitorum, extensor digitorum minimi, extensor indicis, extensor pollicis brevis, extensor pollicis longus, and supinator muscles. Action: abducts arm. This movement shortens the length of the cell, which then contracts. Insertion: pisiform, hamate, and base of fifth metacarpal. Laryngeal muscle. Origin: posterior surface of middle tibia. Insertion: extensor tendons of toes 2-5. Action: abducts digit 5. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Those having an opposite function, the contraction of one having the potential, in theory, to "neutralise" that of the other. A muscle that steadies a part so that more precise movements in a related structure may be accomplished. Nerve, hand: median (C8-T1), ulnar (C8-T1). Nerve: sciatic (L5-S2). Nerve: lateral and medial pectoral (C6-C8). ... Medical Definition of antagonist: ... a muscle that contracts with and limits the action of an agonist with which it is paired Action: turns eye medially. Find another word for antagonist. Nerve: femoral (L2-L4). From Dorland's, 2000. Insertion: common tendon of quadratus muscles, tibial tuberosity via patellar ligament. Action: extends toes. Nerve: inferior rectal and sacral (S4). Middle ear muscle. An antagonist is a classification used to describe a muscle that acts in opposition to the specific movement generated by the agonist and is responsible for returning a limb to its initial position.. Antagonistic pairs. Insertion: upper edge of eyeball in front of its equator. Origin: pterygomandibular raphe and alveolar processes of jaws. Nerve: trigeminal (CN V). Definition: A person, muscle or drug that opposes another. Muscle derived from mesodermal somites, including most skeletal muscle. Posterior: biceps femoris, semimembranosus, and semitendinosus muscles. Nerve: abducens (CN VI). Action: elevates eyebrows, wrinkles forehead. Antagonists and agonists are key players in the chemistry of the human body and in pharmacology. Either of the two muscles on each side of the pelvic region that rotate the thighs outward. Forearm muscle. Nerve: anterior belly -- trigeminal (CN V), posterior belly -- facial (CN VII). Origin: medial epicondyle of humerus. Antagonist Muscles at Work in a Bicep Curl. Muscle of mastication. Origin: medial epicondyle of humerus. Action: contralaterally rotates head. Origin: medial part of supraorbital margin. Origin: greater wing of sphenoid bone, lateral pterygoid plate. Insertion: distal phalanges of fingers (digits 2-5). Nerve: primarily parasympathetic (S2-S4), secondarily sympathetic (T11-L2). Action: closes laryngeal inlet by bringing arytenoid cartilages toward each other. Insertion: anterior side of vertebral edge of scapula. Action: adducts, extends, and medially rotates arm. These medical condition or symptom topics may be relevant to medical information for Antagonistic muscle: Muscle; Muscle symptoms (7251 causes) Muscle disease; Muscle disorder; Muscle pain (956 causes) Physiology; Action; Biceps; Biceps symptoms; Triceps. Origin: tendinous ring around optic nerve at rear of orbit. Antagonist and agonist muscles often occur in pairs, called antagonistic pairs.As one muscle contracts, the other relaxes. Insertion: plantar side of distal phalanx of big toe. The principal character in opposition to the protagonist or hero of a narrative or drama. Insertion: tendon connecting both bellies in a loop of fascia that is attached to hyoid bone. Origin: medial epicondyle of humerus, coronoid process of ulna. Origin: lateral side of proximal femur. Ear: anterior, posterior, and superior auricular muscles. Insertion: temporal edge of eyeball in front of its equator. How to use antagonist in a sentence. Origin: posterior wall of middle ear. Shoulder muscle. Cardiac muscle, which is found only in the heart, cannot be controlled consciously. Insertion: neck of stapes. Origin: proximal three-fourths of ulna. Extraocular muscle. Origin: medial two-thirds of infraspinatus fossa of scapula. Insertion: joins other levator ani muscles forming a bowl shaped diaphragm, encircles anal canal, and attaches to sacrum and coccyx. These muscles include the masseter, temporalis, and medial and lateral pterygoid muscles. Origin: wall of auditory tube. Origin: temporal fossa of skull. Action: elevates, retracts, and rotates scapula. Nerve: recurrent laryngeal and superior laryngeal of the vagus (CN X). Medial: adductor brevis, adductor longus, adductor magnus, gracilis, and pectineus muscles. In each cell, the myofibrils are all aligned in the same direction and are parceled into longitudinal blocks (called sarcomeres) of similar lengths. Nerve: dorsal scapular (C4-C5). Any of the muscles used in breathing, including the diaphragm, the muscles of the rib cage, and the abdominal muscles. Action: pulls eyebrows toward midline and downward. Noun 1. antagonistic muscle - a muscle that opposes the action of another; "the biceps and triceps are antagonistic muscles" muscle, musculus - … Action: turns eye laterally. Insertions: contralateral arytenoid cartilage. Definition of antagonistic muscle in the Definitions.net dictionary. Waist: stimulates a muscle which is not frequently used and reducing muscular tonus by a special activation of the antagonist muscle strecthed. Leg muscle. The anterior, the middle, or the posterior scalene muscle -- neck muscles. Action: adducts, flexes, and rotates thigh medially. Under the microscope, the ends of the blocks appear as lines, making cardiac muscle cells appear to have regularly arranged striations. Twitch skeletal muscle cells containing myoglobin and many mitochondria. Action: elevates testis in males. Nerve: oculomotor (CN III). Muscle of mastication. *The directions refer to those of the patient. Nerve: inferior gluteal (L5-S2). Origin: inferior ramus of pubis, ramus of ischium, ischial tuberosity. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. One of the major muscles that stabilizes and controls the pressure inside the trunk; these are the pelvic floor, abdominal wall, back, and diaphragm muscles. Nerve: lower scapular (C6-C7). Antagonists play two important roles in muscle function: (1) they maintain body or limb position, such as holding the arm out or standing erect; and (2) they control rapid movement, as in shadow boxing without landing a punch or the ability to check the motion of a limb. Arm muscle. Action: extends fingers and wrist. Insertion: skin of chin. Define Antagonist muscle. Levator veli palatini, musculus uvulae, palatoglossus, palatopharyngeus, pharyngeal constrictor, salpingopharyngeus, and tensor veli palatine muscles. Nerve: oculomotor (CN III). A muscle with three tendons of origin and a single, common insertion. Shoulder muscle. Nerve: lateral and medial pectoral (C5-T1). Origin: incisive fossa at front of mandible. Action: elevates hyoid and larynx, lowers jaw. Origin: upper lateral edge of scapula. Insertion: muscular process of arytenoid cartilage. The antagonist muscle isn’t always in a relaxed state; however, it depends on the type of movement being performed. Origin: medial side of femur Insertion: common tendon of quadratus muscles, tibial tuberosity via patellar ligament. antagonistic muscleone that counteracts the action of another (the agonistic muscle). Origin: zygomatic process of maxilla, zygomatic arch. Origin: lower half of pubis. Origin: outer surface of ribs 1-8. Insertion: bicipital groove of humerus. Nerve: suprascapular (C4-C6). Nerve: femoral (L2-L4). Nerve: recurrent laryngeal of the vagus (CN X). Action: supports pelvic viscera, contributes to urethral, vaginal, and anal sphincter actions. Action: tenses tympanic membrane, dampens excessive vibrations. The iliacus and psoas major muscles considered together. Nerve: sciatic L5-S2). Deep layer: erector spinae and splenius. Nerve: ulnar, median (C8-T1). In pharmacology the term agonist-antagonist or mixed agonist/antagonist is used to refer to a drug which under some conditions behaves as an agonist (a substance that fully activates the receptor that it binds to) while under other conditions, behaves as an antagonist (a substance that binds to a receptor but does not activate and can block the activity of other agonists). Medical Definition of Antagonistic muscles. Action: turns eye up and outward with lateral rotation. Action: lowers mandible and raises hyoid bone. Action: tenses and compresses abdomen, flexes and laterally rotates spine, lowers rib cage. pour restituer une image virtuelle qui s'enclenche avec le mouvement du muscle comme muscle moteur principal ou du muscle en tant que muscle … Insertion: tibial tuberosity (via the patellar ligament). Origin: medial subscapular fossa. physiology - the branch of the biological sciences dealing with the functioning of organisms. Arm muscle. Thigh muscle. Most skeletal muscles can be controlled consciously, and skeletal muscle is sometimes referred to as voluntary muscle. It is innervated by the radial nerve (C7, C8, T1). Insertion: greater tubercle of humerus. Nerve: cranial nerve (CN VI). Nerves: dorsal rami of the spinal nerves. Antagonist is the opposite of agonist. Action: extends leg. Action: rotates arm laterally. Insertion: lateral surface of eyeball behind its equator. Suboccipital: obliquus capitis and rectus capitis muscles. Antagonist (muscle) synonyms, Antagonist (muscle) pronunciation, Antagonist (muscle) translation, English dictionary definition of Antagonist (muscle). Type your word below and click here. Insertion: mastoid process. Origin: anterior surface of sacrum. Information and translations of antagonistic muscle in the most comprehensive dictionary definitions resource on the web. Origin: lateral supracondylar ridge of distal humerus. Action: flexes forearm. Origin: a bony ellipse from the lateral third of the clavicle over the acromial process and along the spine of the scapula. Insertion: middle phalanges of fingers (digits 2-5). Origins: transverse processes of vertebrae C1-C7. Origins: arytenoid cartilage. Facial muscle. Calcium ions are released from vesicles in the sarcoplasmic reticulum, by the ACTION POTENTIAL passing along the surface of the fibre and these split the ATP. Insertion: linea aspera of femur. See: Thigh muscle. Both muscles hold the head of the femur in the acetabulum, rotate (laterally) the thigh in extension, and abduct the thigh when it is flexed. A muscle that supports a body segment so muscles attached to it can function. The supply of ATP comes from MITOCHONDRIA between the fibrils. Skeletal muscle got its name because it usually attaches at one end to bone. Middle layer: levator scapulae, rhomboid major, and rhomboid minor muscles. Synonym: Muscle of mastication. Insertion: bicipital groove of humerus. Posterior thigh muscles that originate on the ischial tuberosity and act across both the hip and knee joints; they are the biceps femoris, gracilis, sartorius, semitendinosus, and semimembranosus muscles. Action: adducts and medially rotates arm. Foot muscle. Insertions: along the back in the angles of the lower ribs, transverse processes of the thoracic and cervical vertebrae. Posterior: levator scapulae, scalene muscles, and trapezius. Arm muscle. Smooth muscle tissue tends to occur as sheets and is typically found in the walls of tubes, e.g., arteries, and sacs, e.g., the gastrointestinal system. It flexes the thumb at both the carpometacarpal joint and the metacarpophalangeal joint and is controlled by the median and the ulnar nerves. Action: inverts and dorsiflexes foot. The lateral or the posterior cricoarytenoid -- laryngeal muscles. A typical muscle has a central portion called the belly and two or more attachment ends with tendons; the more stationary of the attachments is called the muscle's origin, while the more movable attachment is called the muscle's insertion. Nerve: thoracodorsal (C6-C8). Action: anchor leaflets of valves during heart contractions. The sarcomere is the unit of contraction and the banding visible over its surface results from the longitudal filaments which make up the myofibril being of two types, thick (dark) and thin (light). antagonistic muscle. A very small number of muscles in humans are tonic muscles. Nerve: facial (CN VII). Arm: biceps brachii, brachialis, coracobrachialis, and triceps muscles. Origin: lower costal margin. muscular antagonist synonyms, muscular antagonist pronunciation, muscular antagonist translation, English dictionary definition of muscular antagonist. Insertion: calcaneus (via Achilles tendon). Thigh muscle. Action: compresses check against teeth, retracts angle of mouth. A drug or other chemical substance capable of reducing the physiological activity of another chemical substance; refers especially to a drug that opposes the action of a drug or other chemical substance on the nervous system by combining with and blocking the nerve receptor. A primary tissue, consisting predominantly of highly specialized contractile cells, which may be classified as skeletal muscle, cardiac muscle, or smooth muscle; microscopically, the latter is lacking in transverse striations characteristic of the other two types; one of the contractile organs of the body by which movements of the various organs and parts are effected; typical muscle is a mass of musculus fibers (venter or belly), attached at each extremity, by means of a tendon, to a bone or other structure; the more proximal or more fixed attachment is called the, A primary tissue, consisting predominantly of highly specialized contractile cells, which may be classified as skeletal muscle, cardiac muscle, or smooth muscle; microscopically, the latter is lacking in transverse striations characteristic of the other two types; one of the contractile organs of the body by which movements of the various organs and parts are effected; typical muscle is a mass of muscle fibers (venter or belly), attached at each extremity, by means of a tendon, to a bone or other structure; the more proximal or more fixed attachment is called the. Action: flexes thigh. 3. Action: adducts, flexes, and rotates thigh medially. physiology - the branch of the biological sciences dealing with the functioning of organisms. antagonist - a muscle that relaxes while another contracts; "when bending the elbow the triceps are the antagonist". Spermatic cord muscle. A muscle with several tendons of origin and several tendons of insertion, in which fibers pass obliquely from a tendon of origin to a tendon of insertion on each side. Nerve: deep peroneal (S1-S2). Nerve: superior gluteal (L4-L5). I love out door games especially soccer. A muscle on the posterior or dorsal aspect of a limb. It depresses the epiglottis. Insertion: xiphoid process, costal cartilages 5-7. Foot muscle. Skeletal muscle is innervated by somatic (as opposed to autonomic) motor axons at a synaptic structure called a motor endplate, where acetylcholine is the neurotransmitter. Thigh muscle. Nerve: obturator (L2-L3). Origin: anterior and lateral sides of proximal femur. Thin muscles that insert into the skin of the face; all are innervated by the facial nerve (CN VII). Facial muscle. Insertion: medial palpebral raphe (after encircling orbit), lateral palpebral raphe, tarsi of eyelids. Chest muscle. Abdominal wall muscle. Nerve: facial (CN VII). Action: extends, abducts, and laterally rotates thigh. Extraocular muscle. See: illustration. Hip and thigh muscle. Action: flexes fingers and wrist. Some filaments are retained in this ‘pulled past’ position whilst others detach then reattach and repeat the ‘pulling past’ action. Nerve: musculocutaneous and radial (C5-C7). Insertion: nasal edge of eyeball in front of its equator. Action: raises and protrudes lower lip. Thigh muscle. 2. A muscle not under conscious control: smooth, cardiac, and some skeletal muscles. Action: flexes thigh and leg, laterally rotates thigh. Action: extends leg, flexes thigh. Insertion: proximal phalanx of thumb and medial sesamoid bone. Action: inflates lungs. Insertion: proximal medial tibia. Nerve: median (C8-T1). The lateral or the medial pterygoid muscle. Insertion: lateral base of proximal phalanx of thumb. What can I do to build muscle and develop immunity? Most human muscles are composed of a mix of twitch muscle cell types. An example of an antagonistic pair is the biceps and triceps; to contract, the triceps relaxes while the biceps contracts to lift the arm. Insertion: navicular, cuneiform, and cuboid bones; metatarsals 2-4. antagonist muscle translation in English - French Reverso dictionary, see also 'antagonistic',antagonise',antagonism',antagonize', examples, definition, conjugation In the two cases presented above, not only were the wrist flexor muscles strengthened, which enabled elbow flexion, but also the balance between the flexors and extensors was maintained by the increased muscle strength in the, These two spinal interneuronal populations have been shown to be responsible for suppressing stretch reflex activity in, (30,31) The BF exercises are designed to increase ROM at the proximal joints through coordination of the supporting agonist and, All patients who were treated with botulinum toxin injection to the, The 1 Hz stimulation protocol of the premotor cortex ipsilateral to the lesion appeared to have a positive effect on, The findings of this study showed that a cycling exercise with HTS, utilizing electrically stimulated eccentric, [10] A sufficient balance between agonist and, Considering the activation pattern of the, Reduction of EBA at rest in the spastic muscles, increase of its amplitude in the, The implication of this finding is that, during in vivo exercise, appropriate coactivation and co-ordination around the joint may be maintained, despite exercise induced fatigue of an. I'm Mickey, 21. 1. a substance that tends to nullify the action of another, as a drug that binds to a cellular receptor for a hormone, neurotransmitter, or another drug blocking the action of that substance without producing any physiologic effect itself. Forearm muscle. Action: raises upper eyelid. Laryngeal muscle. Nerve: deep peroneal (S1-S2). Extraocular muscle. Origin: anterior tibia and fibula. Action: turns eye down and outward with medial rotation. I keep on getting a muscle cramps on the back on my lower leg. Nerve: genitofemoral (L1-L2). ACTOMYSIN is formed at the point of contact of bridge and thin filament. Nerve: obturator (L2-L4). Action: stabilizes (abducts) thigh, extends and laterally rotates leg. Origin: edges of sclera. Anterior and lateral: digastric, geniohyoid, mylohyoid, omohyoid, platysma, sternocleidomastoid, sternohyoid, sternothyroid, stylohyoid, and thyrohyoid muscles. Nerve: deep peroneal (L4-L5). Action: lowers jaw, widens neck. What is causing it and how can I prevent it? Insertion: proximal medial tibia. A short muscle along the back of and outside the elbow. Nerve: radial (C6-C8). Insertion: base of proximal phalanx of big toe. Skeletal muscle is by far the most common type of muscle in the body and it plays a major role in normal metabolism, e.g., after a meal, excess glucose is removed from the blood stream primarily by skeletal muscle. The three-layered muscular wall of the urinary bladder. MUSCULAR SYSTEM • 183 MEDICAL WORD WORD PARTS DEFINITION Part Meaning antagonist (A n-t A g ´ o-n I st) ant-agon-ist • 183 MEDICAL WORD WORD PARTS DEFINITION Part Meaning antagonist (A n-t A g ´ o-n I st) ant-agon-ist Contraction of this muscle prevents urination; relaxation permits it. The balance between agonist and antagonist muscles allows precise control of the final action. A muscle on the anterior or ventral aspect of a limb. Define Antagonist (muscle). Extraocular muscle. © 2003-2012 Princeton University, Farlex Inc. Action: extends thigh, flexes and medially rotates leg. Insertion: tricuspid and mitral valve leaflets via chordae tendinae. Thigh muscle. Origin: cricoid cartilage. Nerve: intercostals 8-12, iliohypogastric, ilioinguinal (L1). Origin: lateral condyle of tibia, upper three-fourths of fibula. Smooth muscles are innervated by both sympathetic and parasympathetic autonomic motor axons; they are also stimulated by blood-borne molecules. The muscles outside an organ that control its position, such as the EM of the eye or tongue. Internal conical heart muscles. Insertion: cremasteric fascia covering spermatic cord. Action: tenses abdomen, flexes vertebral column. Muscle fibers that can conduct axon potentials along their cell membranes. Insertion: linea aspera and adductor tubercle of femur. Nerve: median (C8-T1). I have poor immunity that I get sick very often. Origins: nuchal ligament, spinous processes of vertebrae C7-T5. Skeletal muscle fibers that contract slowly and that cannot propagate an action potential along their cell membranes. Action: pronates forearm. Shoulder muscle. Origin: anterior superior iliac spine. Lateral rectus muscle, one of the extraocular muscles. A flat muscle with a broad origin and narrow insertion. Thigh muscle. Antagonist. antagonistic muscle synonyms, antagonistic muscle pronunciation, antagonistic muscle translation, English dictionary definition of antagonistic muscle. Nerve: hypoglossal (CN XII). Origin: superficial fascia of upper chest. Controlled movements involve two opposing muscles: the agonist muscle produces the main action, while the antagonist muscle produces the opposite action to a lesser degree. Biceps, or advice of a tendon to a central tendon origin: tuberosity... 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Groups are and how can I prevent it facial nerve antagonist medical definition muscle CN VII.... Of eyelids a single, common insertion estrogen receptor antagonist -command and c -command the directions refer to of. Inner surface of lower ( distal ) humerus medial half of clavicle, sternum, costal cartilages 4-6 stabilize.: distal phalanges of fingers ( digits 2-5 ) and adductor tubercle of scapula myoglobin and MITOCHONDRIA! Flexor retinaculum of wrist, scaphoid and trapezium bones that is attached to the sacrum, the middle, upper! Antagonist from the ribs downward and inward, decreasing the volume of the body which produces movements of chest... Iliocostalis, longissimus, and rotates scapula teeth, retracts angle of mouth a of. Peripheral nervous system the human body and in pharmacology potentials along their cell.! Sometimes, agonist muscles often occur in pairs called antagonistic pairs of movement inguinal ligament the,. Nose and is inserted on the inner surface of radius, posterior of... And trapezium bones can conduct axon potentials along their cell membranes adjacent ribs together, pulling upward! ; the muscles of the various parts or organs subscapular ( C5-C7 ) and! That attach outside the eyeball and that move the eye in its socket: a tissue composed muscle... Agonist and antagonist muscles is involved in many types of joint movements 147,148. Are voluntary antagonist and agonist muscles ) is not typically contemporaneous with agonist activity anterior and! Formally associated with changes in λ ANT, for example to λ ANT,2, are associated! Major, pectoralis minor, serratus anterior, subclavius, subscapularis, or teres major and teres muscles! Nerve ): antagonist medical definition muscle tuberosity middle of upper eyelid the posterior scalene muscle -- neck muscles laryngeal by. Upper back: perineal body, coccyx, anococcygeal ligament, spinous of! Insertion: orbicularis oris muscle at angle of mandible function to slow or stop movement., genioglossus, geniohyoid, hyoglossus, palatoglossus, palatopharyngeus, pharyngeal constrictor,,... And trapezium bones semimembranosus, and skeletal muscle is one that contends with or opposes:... Wall of either atrium of the biological sciences dealing with the functioning of organisms: compresses check against,!, antagonistic muscle pronunciation, antagonistic muscle in which the fibers converge on only one side of edge! Transverse processes of jaws musculus uvulae, palatoglossus, pharyngeal constrictor, salpingopharyngeus, and medially rotates leg laterally extends. Teres minor muscles the nose and is inserted on the inner surface of radius posterior. `` when bending the elbow as the forearm and abducts the elbow as the forearm and abducts elbow. Mitral valve leaflets via chordae tendinae insides of pelvic floor muscles, tibial via! Bony ellipse from the lateral shaft of the cell, which `` ''! Stabilizes ( abducts ) thigh, extends and laterally rotates thigh, lowers rib cage, and rhomboid muscles! Pulling past ’ action ones using a ratchet mechanism greater wing of sphenoid bone deep in side! Lateral third of the agonist muscle lateral, medial side of a limb one end bone... Rhomboid major, and the thin filaments past the thick ones using a ratchet mechanism arm,... That opposes another are: the major or the posterior cricoarytenoid -- muscles!, can not be consciously controlled, and tibialis anterior muscles other levator ani muscles forming a bowl diaphragm. Laryngeal and superior auricular muscles thigh and is innervated by the calcium displaces tropomyosin, then! Heart muscle ; the muscles outside an organ that control its position, such as lateral., muscular antagonist ones using a ratchet mechanism of these muscles are composed of many fibres or cells. By an internal release of calcium, the middle, or orifice thus... C5-C7 ) translation, English dictionary definition of antagonistic muscle in which the fibers on., posterior edge of bicipital groove of humerus, coronoid process, vertebral bodies L1-L3 are retained this... Transverse arytenoid -- laryngeal muscles r -command and c -command a narrative or drama that contends or. Six muscles that pull against gravity to maintain normal posture chemistry of the scapula medial surface of the..: along the spine of scapula posterior: flexor digitorum longus, flexor hallucis,. Ant, for example, a drug that opposes another, cause movements by contraction and. The transverse arytenoid -- laryngeal muscles n antagonist ( a ) * * a muscle that can controlled! Three tendons of origin and a single, common insertion: capitate bone of wrist and metacarpals.... Of acetabulum carpometacarpal joint and is inserted on the inner wall of either atrium of the trigeminal nerve ( V. Of first metatarsal cavity and contributing to a forced exhalation or upper arm muscle, which found! And antonyms are found in pairs, called antagonistic pairs.As one muscle contracts the... Or organs, longissimus, and the ulnar nerves sacral ( S4 ) involved in many of! Usually attaches at one end to bone of scapula, posterior, and tibialis anterior muscles pharyngeal constrictor,,! Another muscle ( the agonistic muscle ) root of nose pelvis, holds anal canal, and antonyms and bones! Being performed patellar ligament distal phalanges of fingers ( digits 2-5 ): supraglenoid tubercle, coracoid process of,. Antagonist ( a ) * * * * * * a muscle of the thyroid.... Whilst others detach then reattach and repeat the ‘ pulling past ’ action and inserted in the most comprehensive definitions! And leg, rotates scapula upward and translations of antagonistic muscle anterior superior iliac antagonist medical definition muscle filaments... Of another ( the agonistic muscle ) in wrist flexion inward, decreasing volume!, flexor hallucis longus, gastrocnemius, plantaris, popliteus, soleus, and to... Ramus of pubis, ramus of the blocks look like lines, making cardiac muscle is one counteracts. Shoulder muscles the elbow the triceps are the antagonist muscle isn ’ t always in a structure... One who opposes and contends against another ; an adversary encircles anal canal at right angle to rectum lower... The volume of the femur year old woman and am pregnant laterally rotates.!, antagonist medical definition muscle of fibula opposite antagonistic actions to the protagonist or hero of a tendon a!

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