d) buccinator. c) brachialis. Which of the following muscles is primarily a postural muscle? a) Anterior Deltoid b) Teres Major c) Infraspinatus d) Latissimus Dorsi, Which of the following muscles acts to flex and adduct the arm? The time in the first time zone east of the date line is 232323 hours earlier than the time in the first time zone to the west. Antagonist - muscles that OPPOSE/REVERSE a mov't; Synergist- help prime mover; reducing undesirable/necessary mo't; Fixator - specialized synergist; hold the bone or stabilize origin of P *TRUNK/NECK. [medical citation needed]. Synergist: flexor carpi ulnaris, Action: adducts hand What are various methods available for deploying a Windows application? Coloring helps memory retention. Antagonist: Biceps femoris Which of the following muscles is completely superficial? antagonist; adductor group, gracilis, synergist: gluteus medius and tensor fasciae latae Physiopedia articles are best used to find the original sources of information (see the references list at the bottom of the article). Synergist: Quadriceps, Action: Plantar Flexion See examples of antagonist muscles. I bought Dad^a screwdriver set for Christmas. Antagonist: Sartorious Synergist: Scalenes, Action: elevates hyoid bone Synergist: Trapezius, Action: prime mover of inspiration The party are in excellent health and sperits, zealously attached to the enterprise, and anxious to proceed; not a whisper or murmur or discontent to be heard among them, but all act in unison, and with the most perfict harmony. Available from: T Hasan. When they flied(3)\overset{\text{(3)}}{{\underline{\text{flied }}}}flied(3) from Los Angeles to Sydney, Australia, they arrived at a time that was nearly 323232 hours later than the time when they left. b) orbicularis oris. Would you show Carl and him the photograph? a. Anterior deltoid b. a) deltoid. Synergist: Gluteus maximus, Action: Extends thigh and flexes knee Insertion: Attaches to the mastoid process and the lateral half of the superior nuchal line of the occipital bone. Antagonist: sartorious If there were(10)\overset{\text{(10)}}{{\underline{\text{were}}}}were(10) no date line, he or she would arrive home with a watch whose date is a day off from everyone else's. Sternocleidomastoid is the most superficial and largest muscle in the front portion of the neck. Antagonist: Sternocleidomastoid; Longus colli and capitis; Scalenus anterior, . Antagonist: deltoid [2]. Antagonist: tensor fascia latae Synergist: Extensor carpi radialis longus, Action: Extends and adducts wrists When one side acts alone, it causes the head to rotate to the opposite side and flexes laterally to the same side (ipsilaterally). antagonist: hamstring muscles, synergist: adductor muscles, gracilis skeletal muscle contracts and pulls on bone. The fibers from the accessory nerve nucleus travel upward to enter the cranium via the foramen magnum. Click to see the original works with their full license. The superficial layer includes sternohyoid and omohyoid, while the deep layer is made up of sternothyroid and thyrohyoid. It tilts your head to the ipsilateral (same) side to which the muscle is located. The sternocleidomastoid is innervated by the accessory nerve. L. languish Analytical cookies are used to understand how visitors interact with the website. One way to remember which muscle is the agonist - it's the one that's. The sternocleidomastoid muscle originates from two locations: the manubrium of the sternum and the clavicle. Cervical isometrics in various directions including flexion, side bending, and rotation. The SCM is part of a group of muscles known as the anterolateral neck flexors. Which of the following muscles is most active during medial rotation of the arm? Synergist: gluteus maximus, Action: extends knee and stabilizes it e) latissimus dorsi. Which of the following muscles is a rotator cuff muscle? Antagonist: gluteus maximus Which of the following muscles is most active during lateral rotation of the arm? [5][6] It supplies only motor fibres. F. edifice Unilaterally: Rotate the vertebral column, Lab 17 & 18 Action, Synergist, Antagonist, Head and Neck Muscles - Action, Antagonist, S, Byron Almen, Dorothy Payne, Stefan Kostka, The Language of Composition: Reading, Writing, Rhetoric, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses, John Lund, Paul S. Vickery, P. Scott Corbett, Todd Pfannestiel, Volker Janssen, 1103 - Ch 5: Muscles of the Head, Neck & Face, Micro Exam Chapter 6/7/9 and Chart of Names (. The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. These muscles run up, along the spine, from the base to the skull. In most cases Physiopedia articles are a secondary source and so should not be used as references. Action: Flexes or rotates the head Synergist: None Antagonist: None. process of using agonist and synergist to dynamically move the joint into range of motion. The splenius captis is located on the lateral side of the C7. 1 : an agent that increases the effectiveness of another agent when combined with it; especially : a drug that acts in synergism with another. Innervation is when an organ or body part is supplied with nerves. Internet Journal of Medical Update 2013; 8(2):62-64, Sternocleidomastoid muscle (highlighted in green) - anterior view image - Kenhub, Sternocleidomastoid muscle video - Kenhub, Gray, Henry. This condition when present in humans is considered to be a variation from normal. The International Date Line lays(8)\overset{\text{(8)}}{{\underline{\text{lays}}}}lays(8) between two time zones in the Pacific Ocean. O pectoralis major O latissimus dorsi O deltoid O biceps brachii, Protrusion-Retrusion involves the movements of which muscle? Name a muscle or muscle group and contraction type likely to be active when this person returns to an upright position after having touched their toes and the position this muscle must lie in relation to the vertebral column joints to perform that movemen. Synergist: pectineus, Action: Hip flexor The Sternocleidomastoid is an anterior muscle of the neck. All rights reserved. StatPearls. (a) Brachialis (b) Subscapularis (c) Teres minor (d) Supraspinous. a. soleus b. tibialis anterior c. flexor digitorum longus d. gracilis e. extensor digitorum brevis, Which shoulder joint muscle is associated with humeral abduction, flexion, horizontal adduction, and internal rotation? Torticollis is a movement disorder in which the head is persistently turned to one side. A contraction of both SCM muscles can flex your neck, which brings your chin down in the direction of your breastbone. load is the weight of the object. The SCM continues on to attach to the mastoid bone. antagonist: triceps brachii, synergist: biceps brachii Antagonist: Extensor carpi ulnaris The Anatomy of the Brachiocephalic Artery, Superficial Layer of the Intrinsic Back Muscles, Causes of Collarbone Pain and Treatment Options, Hamstring Muscles: Anatomy, Function, and Common Injuries, spinal accessory nerve (cranial nerve 11), Anatomy, head and neck, sternocleidomastoid muscle. Which of the following muscles is an elbow extensor? (a) sternocleidomastoid (b) splenius capitis (c) semispinalis cervicis (d) scalenus anterior. Antagonist: internal intercostals Benign fibrosis, hypoplasia or aplasia of SCM is the most common cause of congenital torticolis. A. The sternocleidomastoid muscle (SCM) is an important landmark in the neck which divides it into an anterior and a posterior triangle. Antagonist: Soleus The two separate sternomastoid and cleidomastoid bellies further subdivide the anterior triangle into a supernumerary triangle. skeletal muscle is attached to bone at origin and insertion. b) masseter. The manubrium is the uppermost section of the breastbone. [8], The triangle formed by the clavicle and the sternal and clavicular heads of the sternocleidomastoid muscle is used as a landmark in identifying the correct location for central venous catheterization. It IS NOT medical advice. scalenes It covers the anterior surface of the neck superficially. Synergist: Gracilis, Action: Prime mover of foot inversion Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Lateral flexion of the head and cervical spine when acting unilaterally The splenius captis is located on the lateral side of the C7. Sternocleidomastoid: a) used in chewing b) muscle of head or neck c) mandible d) cranium e) atlas f) muscle that move upper extremity g) suicide bags h) epiphysis i) cutaneous j) muscle that move lower extremity. Rotation of the head to the opposite side or obliquely rotate the head. ). The platysma muscle is a superficial muscle of the human neck that overlaps the sternocleidomastoid. Which of the following muscles is used in breathing? c. Spinalis. Kendall, Florence Peterson, McCreary, Elizabeth Kendall, and Provance, Patricia Geise. a. teres major b. infraspinatus c. latissimus dorsi d. subscapularis, Which of the following muscles does not exert a force on the upper extremity during contraction? The supraspinatus and infraspinatus muscles have the main part of their body attached to which of the following bone? Is this considered flexion or extension? Pain was induced by injections of hypertonic saline . Synergist: Supinator, Action: Extends and flares fingers (b) Analyze Cause and Effect: How do the soothsayers' predictions help prompt the king's wishes? Antagonist: Gastrocnemius Antagonist: infraspinatus The frequency of cleido-occipital muscle occurrence has been reported up to 33%. It also acts as an accessory muscle of inspiration. The accessory nerve nucleus is in the anterior horn of the spinal cord around C1-C3, where lower motor neuron fibers mark its origin. A. prime mover (agonist) B. antagonist C. synergist D. fixator E. origin F. insertion, Which muscle extends the elbow? Finally, look up each word in the dictionary and record the definitions on the lines below. What is the antagonist muscle in elbow flexion? The Internet Journal of Human Anatomy 2010. a. Levator scapulae b. Pectoralis minor c. Rhomboid d. Serratus anterior e. Trapezius, Which of the following muscles is a rotator cuff muscle? The splenius captis is located on the lateral side of the C7. Scalene Muscle Group Synergist: Sternocleidomastoid, Longus colli and capitis Peripheral Nerve Surgical Procedures for Cervical Dystonia", "64 Cranial Nerve XI: The Spinal Accessory Nerve", https://en.wikipedia.org/w/index.php?title=Sternocleidomastoid_muscle&oldid=1134499511. One SCM can also turn, or rotate, your head to the opposite side. 3 What is the antagonist muscle in elbow flexion? I. gravity Antagonist: Extensor digitorium longus Which of the following muscles flexes the neck? Which of the following muscle is most active during the abductive of the arm? The two heads are separated from one another at their origins by a triangular interval (lesser supraclavicular fossa) but gradually blend, below the middle of the neck, into a thick, rounded muscle which is inserted, by a strong tendon, into the lateral surface of the mastoid process, from its apex to its superior border, and by a thin aponeurosis into the lateral half of the superior nuchal line of the occipital bone. Fifth Edition. Sternocleidomastoid and the Scalenes are Synergists, which mean that they work together to provide the same movements (flexion, rotation and lateral flexion of the head and neck)An Antagonist is a . Explore antagonistic muscles. Antagonist: Scalenes Correct answer-short muscles: upper traps, sternocleidomastoid, lattismus dorsi, teres major, pec major/minor long muscles: rhomboids, mid traps, lower traps, . Bordoni B, Varacallo M. Anatomy, head and neck, sternocleidomastoid muscle. 1 Definition. Synergist: abductor pollicis longus, Action: Flexed thumb Synergist: flexor carpi radialis, Action: Arm abduction The muscle allows the head and vertebrae to extend. (a) Deltoid (b) Teres major (c) Infraspinatus (d) Coracobrachialis (e) Trapezius. antagonist: tensor fasciae latae, gluteal minimus, medius muscles, synergist: gastrocnemius Antagonist: Tensor fascia latae Clavicular Head:Superior surface of the medial one-third of the clavicle, Insertion: Lateral surface of the mastoid process, the lateral half of the superior nuchal line, Actions: The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. Just check all flip PDFs from the author ibed_guidance. We were now about to penetrate a country at least two thousand miles in width, on which the foot of civilized man had never (3) trodden; the good or evil it had in store for us was for experiment yet to determine, and these little vessells contained every article by which we were to expect to (4) subsist or defend ourselves. Moore, Keith, L., Dalley, Arthur, F. Clinically Oriented Anatomy. In an antagonistic muscle pair, as one muscle contracts, the other muscle relaxes or lengthens. Lower: Levator Scapulae. Synergist: NA, Action: Only flexor of distal phalanges Unilaterally: contralateral cervical rotation, ipsilateral cervical flexion Sternocleidomastoid --- Splenius Capitis Preview this quiz on Quizizz. They cause formation of supernumerary lesser supraclavicular fosse. Synergist: psoas, Action: adducts thigh Antagonist: Digastric 3. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. This article incorporates text in the public domain from page 390 ofthe 20th edition of Gray's Anatomy (1918). Abnormal head positioning in utero or difficult birth can lead to development of the compartment syndrome and congenital muscular torticollis sequela.Acquired SCM torticollis, can be post traumatic, myopathy induced, post infectious, drug induced, neurological or following sudden strenuous neck muscle activity. a) sternocleidomastoid b) orbicularis oculi c) trapezius d) platysma, Which muscle acts to anchor the scapula? Muscle overlays on the human body. 11 times. However, they can be effectively utilized for muscle flap harvests. 5th Edition. Synergist: supinator, Action: Stabilizes wrist Middle: Pectoralis minor, serratus anterior Upper region of medial border and superior angle of scapula. Sternal Head:Upper part of the anterior surface of the manubrium The SCMs on each side of your body course from the breastbone and collar bone in the upper part of the chest to the back of the head. As they ascend, the CH spirals behind the SH and blends with its deep surface below the middle of the neck, forming a thick rounded belly. The sternocleidomastoid muscles flex the neck, and the splenius cervicis muscles extend it. e) platysma. Enterta[in]ing as I do, the most confident hope of succeeding in a voyage which had formed a (7) da[r]ling project of mine for the C. The sternocleidomastoid is the prime mover and the splenius cervicis is the antagonist. Antagonist: Splenius a. platysma b. occipitalis c. sternohyoid d. mylohyoid. The antagonist of the splenius capitis muscle is the Sternocleidomastoid. Nerve Supply: Cervical nerve 7. What is the function of the sternocleidomastoid muscles? The SCN can produce several different neck movements. In this case, it lifts up the breastbone and the area of the collarbones that are nearest to the midline of the body. The Anatomy of the Sternocleidomastoid Muscle. We also use third-party cookies that help us analyze and understand how you use this website. Synergist: Abductor pollicis longus, Action: forearm flexor Interrelationship of the Spine, Rib Cage, and Shoulder", "28. Muscles that Act on the Scapula . Sternocleidomastoid muscle 32 languages The sternocleidomastoid muscle is one of the largest and most superficial cervical muscles. d) lateral pterygoid. Working with a physical therapist can be a useful modality to strengthen the SCM if it has been injured or weakened. Furthermore, they are components of the boundaries of the submental and submandibular triangles of the neck. a. Pectoralis major b. Serratus anterior c. Supraspinatus d. Teres major. Which of the following muscles extends the head on the neck? The cervical plexus supplies sensation, including proprioception, from the ventral primary rami of C2 and C3.[5]. There are also cases presenting with extra sternal and clavicular heads of origin in SCM.These additional heads, may be unilateral or bilateral and cause significant stenosis of the lesser supraclavicular fossa, imposing complications for anesthesiologists during the anterior central venous catheterization approach. Identify the word in given pair that is spelled correctly. a. Levator scapulae b. Pectoralis minor c. Rhomboid d. Serratus anterior e. Trapezius, Which of the following muscles is the prime flexor of the arm at the shoulder joint? A neck extension movement that takes place at your first. a. splenius cervicis b. latissimus dorsi c. trapezius (upper fibers) d. serratus anterior e. teres major. Contraction of the muscle gives rise to a condition called torticollis or wry neck, and this can have a number of causes. However, as the state of mind in which we are, generally gives the (5) colouring to events, when the imagination is (6) suffered to wander into futurity, the picture which now presented itself to me was a most pleasing one. What muscle(s) serves as an antagonist to the biceps? The sternocleidomastoid (right muscle shown) can be clearly observed when rotating the head. English Edition. This muscle binds the skull to the sternum and clavicle. Sternocleidomastoid: Sternocleidomastoid: Rectus Abdominus: Erector Spinae Group: Origin: where muscle meets bone that doesn't move-proximal: Insertion: where muscle meets bone that does move-distal: Agonist: muscle that contracts: Antagonist: muscle that relaxes: Synergist: muscle that also contracts to aid agonist: Fixator Antagonist: Triceps They assist the SCM in turning and tilting both the head and neck. Synergist or Antagonist DRAFT. It can be felt on each side of the neck when a person moves their head to the opposite side. antagonist: tensor fasciae latae, gluteal minimus, medius muscles, synergist: sartorius There are reports of a broad clavicular head splitting into multiple small muscular slips. Antagonist: external intercostals Sternocleidomastoid and the Scalenes are Synergists, which mean that they work together to provide the same movements (flexion, rotation and lateral flexion of the head and neck)An Antagonist. This can cause atrophy (shrinking) in the affected SCM and may cause difficulty in turning the head and bending the neck. ), In American English, words ending in the sound ens are usually spelled with -nce, as in reverence. Bilaterally: Extend head and neck More rarely, the adjoining margins of the sternocleidomastoid and trapezius are in contact. 2 What are synergist muscles? Antagonist: Flexor carpi radialis We therefore modeled the effects of drug . The muscle allows the head and vertebrae to extend. Strap-like; e.g., sternocleidomastoid Or: What muscle attaches at the anterior superior iliac spine, and crosses both the hip and knee joints? synergist: sternocleidomastoid, rhomboids, synergists: middle deltoid and infraspinatus, synergist: teres minor, subscapularis, supraspinatus, deltoids, synergist: deltoid, pectoralis major, latissimus dorsi, subscapularis, synergist: rhomboids, pectoralis major, teres major, synergist: supraspinatus and pectoralis major (for flexion) For example, the agonist, or prime mover, for hip flexion would be the iliopsoas. ibed_guidance published Seeleys essentials of anatomy physiology ( etc.) As the muscles contract across the shoulder joint it brings your shoulder upward into flexion as you push the ball the opposite happens and the antagonist becomes your deltoid and the latissimus dorsi becomes your agonist. Synergist: Sarotious, Action: Abducts and medially rotates thigh Michael Menna, DO, is a board-certified, active attending emergency medicine physician at White Plains Hospital in White Plains, New York. on 2022-08-08. a. rhomboid major b. rhomboid minor c. trapezius d. serratus anterior, Which of the following posterior muscles is associated with shoulder joint adduction, extension, internal rotation, and horizontal abduction? Other functions of the SCM include assisting in breathing, maintaining neck posture, and helping the temporomandibular joint (TMJ) function. antagonist: quadriceps femoris muscles, synergist: soleus Torticollis. last ten years, I could but esteem this moment of my departure as among the most happy of my life. This tent is in the Indian stile formed of a number of (8) dressed Buffaloe skins sewed together with sinues. These cookies do not store any personal information. Vascular supply: Muscular branches of the ascending Cervical artery. 2023 Dotdash Media, Inc. All rights reserved. B. Abdominal. Antagonist: pronator teres Antagonist: Flexor carpi radialis superficial A) Coracobrachialis B) Tricep Brachi C) Latissimus dorsi D) Pectoralis major E) Supraspinatus, Which of the following muscles is an important elevator of the scapula? B. D. Pectoralis minor. Antagonist: Tibialis posterior Excellent visuals! When acting together it flexes the neck and extends the head. a. Frontalis b. Occipitalis c. Masseter d. Sternocleidomastoid e. Rectus Abdominis f. Pectoralis Minor g. Pectoralis Major h. Supraspinatus i. Infraspinatus j. Subscapularis, All of the muscles that move the glenohumeral joint have a distal attachment on the humerus, except one. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Head and neck to opposite side, elevate the scapula, upwardly rotate the scapula Synergist: Biceps brachii, Action: Pronates forearm "offense, offence". Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. copyright 2003-2023 Homework.Study.com. For example, the scalenes are synergist muscles to the sternocleidomastoids (SCM), because they help with turning and tilting the head and neck. When it contracts, it produces a slight wrinkling of the neck, and a "bowstring" effect on either side of the neck. Anatomy of the Human Body. It is partially covered by the gluteus maximus. antagonist: erector spinae, synergist: external oblique, rectur abdominis The sternocleidomastoid muscles (SCM) help with functions such as head rotation, head tilt, pointing the chin toward the breastbone, and more. Synergist: Tibialis posterior, Action: Keeps foot flat on ground One originates from the collarbone/clavicle and the other from the breastbone/manubrium. This study described effects of experimental muscle pain on resting EMG activity in a jawclosing muscle and a leg muscle. Synergist: Brachioradialis, Action: Extends thumb Many actions in the body do have one muscle that is responsible for more of the work in that action than any other muscle. Which muscle depresses the clavicle and stabilizes the pectoral girdle? [3] It travels obliquely across the side of the neck and inserts at the mastoid process of the temporal bone of the skull by a thin aponeurosis. It travels superiorly, laterally, and posteriorly. . But opting out of some of these cookies may affect your browsing experience. e) latissimus dorsi. The scalenes are synergist muscles, or helper, muscles to the sternocleidomastoid. Read more, Physiopedia 2023 | Physiopedia is a registered charity in the UK, no. Synergist: external intercostals. (c) Transverse cervical. chest press -> rotator cuff Antagonist . Etymology and location [ edit] Necessary cookies are absolutely essential for the website to function properly. Necessary cookies are absolutely essential for the website to function properly. Antagonist: Supinator This cookie is set by GDPR Cookie Consent plugin. Antagonist: Flexor carpi ulnaris Synergist: pectineus, Action: Flexes knew Sternocleidomastoid (anterior fibers) 2. The information provided on this site is not a substitute for a physical consultation with a medical professional. (a) latissimus dorsi (b) pectoralis major (c) rhomboid (d) subclavius (e) trapezius. The function of this muscle is to rotate the head to the opposite side or obliquely rotate the head. Antagonist: Tibialis Anterior (a) Latissimus dorsi (b) Infraspinous (c) Supraspinous (d) Subscapularis. The other muscles in the anterolateral neck flexor group are the scalenes, which are located more deeply in the neck than the SCM. The sternocleidomastoid muscle is a two-headed neck muscle, which true to its name bears attachments to the manubrium of sternum (sterno-), the clavicle (-cleido-), and the mastoid process of the temporal bone (-mastoid). This would leave no posterior triangle. The supraclavicularis muscle arises from the manubrium behind the sternocleidomastoid and passes behind the sternocleidomastoid to the upper surface of the clavicle. In many animals, the cleidomastoid belly is distinctly separate from the sternomastoid belly. 83% average accuracy. Cervical Muscle Myoelectric Response to Acute Experimental Sternocleidomastoid Pain. Baltimore, Maryland: Williams & Wilkins. Synergist: infraspinatus, Action: stabilizes scapula Clavo-Trapezius, Acromio-Trapezius, Spino-Trapezius, Pectoralis Minor, Levator Scapulae, Serratus . a. Digastric b. Mylohyoid c. Omohyoid d. Sternocleidomastoid. a. Pectoralis minor b. Subscapularis c. Rhomboid d. Trapezius, Which of the following muscles has two heads? When the clavicular origin is broad, it is occasionally subdivided into several slips, separated by narrow intervals. Developmentally, these additional muscle slips indicate abnormal mesodermal splitting in posterior sixth branchial arch. Origin vs. insertion b. Intrinsic vs. extrinsic c. Agonist vs. antagonist 2. It also acts as an accessory muscle of respiration, along with the scalene muscles of the neck. a. triceps brachii b. pronator quadratus c. adductor pollicis d. flexor carpi radialis e. abductor pollicis brevis, Which of the following muscles is a lateral rotator of the arm? The muscle that is contracting is called. Antagonist: sternocleidomasteoid Occasionally, the SCM fuses with the trapezius, leaving no posterior triangle. J. heretic Antagonist: Brachioradialis Synergists and Antagonists Synergists - are groups of muscles working together to cause movement A coexisting unilateral absence of SCM with the ipsilateral absent trapezius is an extremely rare variation and till date, only about three such reports are present in literature .Such cases present with cosmetic and functional impairment and are best diagnosed by Magnetic Resonance Imaging scans. Many important structures relate to the sternocleidomastoid, including the common carotid artery, accessory nerve, and brachial plexus. K. irascible A. Biceps brachii B. Brachialis C. Brachioradialis D. Triceps brachii, Which of the following muscles provides the greatest contribution to lateral rotation of the shoulder joint? Such a phenomenon describes Sinohara's law of separation which states that two muscles( SCM and trapezius ) having common nerve supply ( accessory nerve ) are derived from a common muscle mass8. Which of the following muscles supinates the forearm? Lateral flexion of the head and cervical spine when acting unilaterally, Antagonists:Splenius Capitis contralateral side, 4. Top Contributors - Venus Pagare, Admin, Kim Jackson, Joao Costa, Daniele Barilla, WikiSysop, Joshua Samuel, Evan Thomas, Tarina van der Stockt and Lucinda hampton, Sternocleidomastoid (SCM) (synonym musculus sternocleidomastoideus)is a paired superficial muscle in the anterior portion of the neck. Also, the muscle works with the scalene muscles in the neck during forced inspiration while breathing. Synergist: palmaris longus, Action: Tenses skin & fascia of palm a. supraspinatus b. rhomboids c. deltoid d. infraspinatous. Describe the relationship between bones and skeletal muscles in the production of body movements. a. Longissimus. The passage is written by Lewis and dated April 7, 1805. Antagonist: abductor pollicis longus a) Temporalis b) Rectus abdominis c) Erector spinae d) Sternocleidomastoid e) Splenius capitis. Edit. Synergist or Antagonist DRAFT. Synergist: pectoralis major, Action: Flexes wrist and middle phalanges "5. It is mandatory to procure user consent prior to running these cookies on your website. Sternothyroid is a paired strap muscle located in the muscular triangle of the neck.It is a part of a group of muscles called the infrahyoid muscles.There are four such muscles that are grouped into superficial and deep layers. Because drugs manifest their action via their targets, the effects of drug combinations should depend on the interaction of their targets in a network manner. (a) abductor pollicis longus (b) anconeus and triceps brachii (c) biceps brachii and supinator (d) extensor carpi ulnaris (e) flexor digitorum profundus. a) frontalis. Some authors regard such fusions to be a normal developmental feature , due to their common derivation from the post- sixth branchial arch. Antagonist: Psoas Antagonist: Gracilis Which of the following does not attach to the corocoid process of the scapula? Sternocleidomastoid (SCM) muscle pain in the neck typically results from muscle tension or performing repeated motions. Antagonist: Palmaris longus [2] Itprotects the vertical neurovascular bundle of neck, branches of cervical plexus, deep cervical lymph nodes and soft tissues of neck from damage[2], Image: Sternocleidomastoid muscle (highlighted in green) - anterior view[3], This 2 minute video is a good summary of the sternocleidomastoid muscle. The antagonist of the splenius capitis muscle is the Sternocleidomastoid. d. Splenius. Which of the following muscles produces the main flexion of the elbow? Synergist: Extensor hallucis longus, Action: Extends big toe