The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. Head and neck to opposite side, elevate the scapula, upwardly rotate the scapula Moore, Keith, L., Dalley, Arthur, F. Clinically Oriented Anatomy. Bilaterally: Extend head and neck Why did medieval Europe's attitudes toward Jews change? (b) The glenohumeral joint allows for movement in which dimensions? These muscles also support and provide protection for the internal structures of the neck. About a dozen cases have reported complete unilateral absence of the muscle. Some authors regard such fusions to be a normal developmental feature , due to their common derivation from the post- sixth branchial arch. This website uses cookies to improve your experience while you navigate through the website. 1 Definition. b) triceps brachii. 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 . Antagonist: Brachioradialis Synergist: transverse abdominis, Action: compresses abdominal contents Antagonist Muscles On the opposite side of the body from the multifidus and erector spinae are the abdominal muscles. By clicking Accept, you consent to the use of ALL the cookies. [7], The sternocleidomastoid is within the investing fascia of the neck, along with the trapezius muscle, with which it shares its nerve supply (the accessory nerve). Synergist: Extensor hallucis longus, Action: Extends big toe Which of the following muscle is most active during the abductive of the arm? The SCM is part of a group of muscles known as the anterolateral neck flexors. Examination of the sternocleidomastoid muscle forms part of the examination of the cranial nerves. What is the relationship between these muscles when bowing your head? Synergist: Action: internal expiration by compressing ribs toward each other Synergist: NA, Action: rotates and adducts scapula 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. C. Diaphragm. Muscles that Act on the Scapula . Synergist: Brachioradialis, Action: Extends thumb Antagonist: Gluteus maximus Which of the following groups of muscles does not move the vertebral column? Excellent visuals! You also have the option to opt-out of these cookies. (a) sternocleidomastoid (b) splenius capitis (c) semispinalis cervicis (d) scalenus anterior. Philadelphia: Lea and Febiger, 1918; Bartleby.com, 2000. More rarely, the adjoining margins of the sternocleidomastoid and trapezius are in contact. Antagonist: Scalenes When it contracts, it produces a slight wrinkling of the neck, and a "bowstring" effect on either side of the neck. (a) latissimus dorsi (b) pectoralis major (c) rhomboid (d) subclavius (e) trapezius. Which of the following muscles is most active during flexion of the arm/glenohumeral joint? The movement of troponin and tropomyosin is key in facilitating the myosin head to move along the thin filament, resulting in a contraction of the sternocleidomastoid muscle. Antagonist: Biceps brachii d) lateral pterygoid. Unilaterally- Laterally Flex the head and neck, rotate. New York. Antagonist: deltoid Advertisement Middle Trapezius Rotation, retraction, elevation, and depression of scapula, serratus anterior muscle, Latissimus dorsi, Pectoralis Major. Antagonist: Extensor digitorium longus Antagonist: Sartorious The fibers from the accessory nerve nucleus travel upward to enter the cranium via the foramen magnum. antagonist; adductor group, gracilis, synergist: hamstring muscles and gracilis Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Which of these muscles is the prime mover of elbow extension? Synergist: Extensor hallucis longus, Action: Prime mover of toe extension 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 (. chest press -> rotator cuff Antagonist . The function of this muscle is to rotate the head to the opposite side or obliquely rotate the head. c) brachialis. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Antagonist: Palmaris longus J. Ashton . Antagonist: Soleus (d) Segmental branches. One side can contract, or both sides can contract. Underline nouns or pronouns that make up each one. Clark myself the two Interpretters and the woman [Sacajewea] and the child sleep in a tent of dressed skins. Sternocleidomastoid --- Splenius Capitis Preview this quiz on Quizizz. The sternocleidomastoid muscle is an axial muscle located on either side of the neck and supports forward and lateral flexion at the neck as well as rotation and elevation of the sternum and. 11 times. The sternocleidomastoid muscles (SCM) help with functions such as head rotation, head tilt, pointing the chin toward the breastbone, and more. The world divides(7)\overset{\text{(7)}}{{\underline{\text{divides}}}}divides(7) into 242424 time zones so that the sun is high in the sky at noon almost everywhere on earth. Antagonist: Latissimus dorsi Which one? Cervical Muscle Myoelectric Response to Acute Experimental Sternocleidomastoid Pain. c. Spinalis. It can also occur with certain health conditions, such as asthma and. A. sternocleidomastoid muscles B. scalene muscles C. pectoralis major D. masseter, Which muscle is directly superior to the trapezius? a) Biceps brachii muscle b) Pronator teres c) Flexor carpi radialis d) Brachialis. Synergist: abductor pollicis longus, Action: Flexed thumb In a back extension these muscles are the agonist. b. Quadratus lumborum. Synergist: flexor carpi radialis, Action: Arm abduction Antagonist: Tensor fascia latae Antagonist: adductor mangus [2]. Which of the following muscle is found in the head? Synergist: Abductor pollicis longus, Action: forearm flexor D. The sternocleidomastoid is the fixator and the splenius cervicis is the prime mover. Which of the following muscles is an elbow extensor? Also, the muscle works with the scalene muscles in the neck during forced inspiration while breathing. Contralateral rotation of the head and cervical spine when acting unilaterally. Antagonist: Identify the word in given pair that is spelled correctly. ). When one side acts alone, it causes the head to rotate to the opposite side and flexes laterally to the same side (ipsilaterally). 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. Synergist muscles work along with agonist muscles to create motion analogous to or in conjunction with agonist muscles, allowing for a wide range of conceivable motions. The upper fibers are syndergistic with the sternocleidomastoid in head and neck movements and through its rotation of the scapula during glenohumeral movement is an essential part of the "scapulohumeral" rhythm. It can be felt on each side of the neck when a person moves their head to the opposite side. B), Which large muscle has an attachment on the external occipital protuberance and extends the neck? The sternocleidomastoid is the prime mover and the splenius cervicis is the antagonist. English Edition. Synergist: Gracilis, Action: Prime mover of foot inversion E. The. 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. Accessory muscles of inhalation include? Synergists and Antagonists Synergists - are groups of muscles working together to cause movement A. appall b) masseter. antagonist: tibialis anterior, Muscles of the trunk - origin, insertion, act, NCLEX electrolyte imbalances & pharm tricks, Byron Almen, Dorothy Payne, Stefan Kostka, John Lund, Paul S. Vickery, P. Scott Corbett, Todd Pfannestiel, Volker Janssen, Eric Hinderaker, James A. Henretta, Rebecca Edwards, Robert O. Self, Muscular System (with Origin, Insertion, and. Antagonist: sartorious indirect object. The thickness of the CH is variable. The antagonist of the splenius capitis muscle is the Sternocleidomastoid. 5- 10 reps/ 1-2 seconds Dynamic Stretching . 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. Which of the following muscles is most active during lateral rotation of the arm? Synergist: Trapezius, Action: prime mover of inspiration Encircles mouth, inserts into muscle/skin at mouth angle. A. Pronator teres B. Flexor carpi radialis C. Brachioradialis D. Flexor carpi ulnaris E. Biceps brachii. Lippincott, Williams and Wilkins. Synergist: Tensor fascia latae, Action: Extends thigh The sternal head is a round fasciculus, tendinous in front, fleshy behind, arising from the upper part of the front of the manubrium sterni. It also flexes the neck. Synergist: pectoralis major, Action: Extends and medially rotates humerus This condition when present in humans is considered to be a variation from normal. Antagonist: Splenius Synergist: Platysma Sternocleidomastoid Action: Flexes neck forward when together Antagonist: Temporalis Synergist: Scalenes Flickr Creative Commons Images Some images used in this set are licensed under the Creative Commons through Flickr.com. are found Synergists prevent movement ot the inter-in the large trunk and thigh muscles, . That is usually the journal article where the information was first stated. Synergist: deltoid, Action: Forearm flexor This cookie is set by GDPR Cookie Consent plugin. Synergist: supraspinatus, Action: Pulls shoulders medially Antagonist: Tibialis Anterior Is this considered flexion or extension? O pectoralis major O latissimus dorsi O deltoid O biceps brachii, Protrusion-Retrusion involves the movements of which muscle? On the answer line, write the word from the box that completes item below. 1 : an agent that increases the effectiveness of another agent when combined with it; especially : a drug that acts in synergism with another. a) Flexor pollicis longus b) Vastus medialis c) Rectus femoris d) Soleus e) Gluteus maximus, Which of the following elbow flexor muscles is also a forearm supinator? Synergist: Quadriceps, Action: Plantar Flexion Muscles have a point of origin and a point of insertion origin - (head) - normally is more stationary than insertion insertion - undergoes more movement. The mutual links between muscle pain and resting electromyographic (EMG) activity are still controversial. Cook, were still viewed by us with as much pleasure as those deservedly famed adventurers ever ( 2 ) beheld theirs; and I dare say with quite as much anxiety for their safety and preservation. Primary Actions of the Sternocleidomastoid. Which muscle acts as an antagonist to trapezius? (a) What does the king specify as his wish for Mari Djata? This study described effects of experimental muscle pain on resting EMG activity in a jawclosing muscle and a leg muscle. The ACH causes the resting potential to increase above -55mV, thus initiating an action potential which travels along the muscle fiber. antagonist: gluteal muscles, adductor muscles, tensor fascia latae, synergist: adductor muscles, gracilis Createyouraccount. It is sometimes also called the "prime mover". What are various methods available for deploying a Windows application? a) Splenius capitis b) Semispinalis capitis c) Sternocleidomastoid d) Trapezius, What are attachments for these muscles, and their functions? Action: Pulls ribs forward Which muscle acts as a synergist with pectorals minor during abduction of the scapula? These cookies do not store any personal information. choose all that apply. Sternocleidomastoid (Action, Synergist, Antagonist, BodyBuilder (Y/N)) Action: Flexes or Rotates the Head Synergist: N/A Antagonist: N/A BodyBuilder: Yes . Synergist: Pectoralis major Antagonist: Spino-deltoid. Which of the following muscles performs cervical extension only? Antagonist: Gracilis a) Sternocleidomastoid b) Gastrocnemius c) Gluteus maximus d) Flexor carpi radialis e) None of the above; 1. It travels superiorly, laterally, and posteriorly. Treatment of a shortened SCN involves gentle stretching of a tight SCM muscle to lengthen it to a normal shape. Action: When it is acting superiorly, it elevates the 1st rib as in the process of inhalation; inferiorly, assists in flexion and rotation of the neck. Sternocleidomastoid. It is partially covered by the gluteus maximus. This website uses cookies to improve your experience while you navigate through the website. Antagonist: external intercostals Anatomy of the Human Body. A) The sternocleidomastoid is the prime mover, and the splenius cervicis is the fixator. Etymology and location [ edit] Antagonist: Palmaris longus Synergist: teres major, Action: Lateral rotation of humerus What appendicular muscles are needed to maintain the upper limbs pointed straight ahead, with the fingers pointed (extended), palms down (pronated), forearms extended, and arms fully flexed, with scapulae elevated and upwardly rotated (the glenoid cavitie, Which of the following muscles moves both the pectoral girdle and the glenohumeral joint? Middle: Adduct the scapula, stabilize the scapula Synergist: serratus anterior, Action: Moves scapula towards chest wall Occasionally, the SCM fuses with the trapezius, leaving no posterior triangle. These cookies ensure basic functionalities and security features of the website, anonymously. We therefore modeled the effects of drug . When acting alone it rotates to the opposite side (contralaterally) and slightly (laterally) flexes to the same side. Upper region of medial border and superior angle of scapula. Muscle agonists. Unilaterally: contralateral cervical rotation, ipsilateral cervical flexion It also acts as an accessory muscle of inspiration. For each verb form that is underlined, choose the letter of the best revision. [3] When both sides of the muscle act together, it flexes the neck and extends the head. Verywell Health's content is for informational and educational purposes only. Antagonist: Sternocleidomastoid; Longus colli and capitis; Scalenus anterior, . This little fleet altho' not quite so respectable as those of Columbus or Capt. Synergist: Psoas, Action: stabilizes pelvis They cause formation of supernumerary lesser supraclavicular fosse. The muscle allows the head and vertebrae to extend. a. Biceps brachii b. Triceps brachii c. Jaw d. Tongue. Flexion of the head and cervical spine when anterior fibers act bilaterally, 3. In this situation, the SCM also turns the face upward just a little, adding in a bit of neck extension. They may not cause any functional advantage or disadvantage in neck movement but might be physically interfering during invasive procedures. The muscle primarily responsible for a movement is called the prime mover, and muscles that assist in this action are called synergists. antagonist: quadriceps femoris muscles, synergist: soleus The sternocleidomastoid is the prime mover and the splenius cervicis is the fixator. Action: Flexes or rotates the head Synergist: None Antagonist: None. A. Brachialis B. Deltoid C. Triceps Brachii D. Brachioradialis E. Trapezius. Antagonist: Sartorious Antagonist: Adductor mangus Together, they function in swallowing, chewing, and speech, serve as important surgical landmarks in neck dissections and are used routinely for reconstruction. Share and download Seeleys essentials of anatomy physiology ( etc.) Cervical isometrics in various directions including flexion, side bending, and rotation. Congenital torticollis can have an unknown cause or result from birth trauma that gives rise to a mass or tumor that can be palpated within the muscle. The number of these extra clavicular slips may vary and such occurrence may be unilateral or bilateral. Synergist: psoas, Action: adducts thigh (Sternocleidomastoid synergist) Muscle Origin Insertion Action Muscle that Move the Pectoral Girdle Trapezius Occipital bone, ligamentum nuchae, spinous process C 7 - T 12. Which of the following muscles is completely superficial? How did the United States respond to Jewish refugees after Kristallnacht? Benign fibrosis, hypoplasia or aplasia of SCM is the most common cause of congenital torticolis. Antagonist: Gluteus maximus Synergist: Action: stabilizes pelvis Antagonist: Supinator C. The sternocleidomastoid is the prime mover and the splenius cervicis is the antagonist. However, you may visit "Cookie Settings" to provide a controlled consent. All rights reserved. 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? Innervation is when an organ or body part is supplied with nerves. Which of the following muscles produces the main flexion of the elbow? They act to extend the spine, bending it backwards. Which of the following muscles is (only) responsible for scapular protraction and upward rotation? scalenes The major muscles of the neck include the semispinalis capitis, splenius capitus, levator scapulae, scalenes, trapezius, sternohyoid, onohyoid, and the sternocleidomastoid. 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. StatPearls. Synergist muscles help other muscles perform one or more functions. process of using agonist and synergist to dynamically move the joint into range of motion. copyright 2003-2023 Homework.Study.com. What muscle is behind the sternocleidomastoid? 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. c) medial pterygoid. Which muscle depresses the clavicle and stabilizes the pectoral girdle? Antagonist: sternocleidomasteoid skeletal muscle contracts and pulls on bone. A. abductor pollicis brevis B. flexor pollicis longus C. medial heads of flexor digitorum profundus D. superficial head of flexor pollicis brevis E. pronator quadratus, Which of the following muscles are innervated by the trigeminal nerve? Furthermore, they are components of the boundaries of the submental and submandibular triangles of the neck. Sternocleidomastoid (SCM) muscle pain in the neck typically results from muscle tension or performing repeated motions. A synergist that makes the insertion site more stable is called a fixator. It is given the name sternocleidomastoid because it originates at the manubrium of the sternum (sterno-) and the clavicle (cleido-) and has an insertion at the mastoid process of the temporal bone of the skull.[3]. 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. 0. [5][6] It supplies only motor fibres. Necessary cookies are absolutely essential for the website to function properly. Antagonist: Gastrocnemius . These cookies will be stored in your browser only with your consent. Synergist: deltoid, Action: lateral rotation of humerus It covers the anterior surface of the neck superficially. Physiopedia articles are best used to find the original sources of information (see the references list at the bottom of the article). 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. The form of a muscle that stabilizes the origin of the prime mover so that it can act more efficiently is called the: a. synergist b. agonist c. antagonist d. fixator e. secondary mover The muscles of ____ lie within the subcutaneous layer, originating on the fascia or bones of the _____ and inserting into the _____. Capt. a) Anterior Deltoid b) Teres Major c) Infraspinatus d) Latissimus Dorsi, Which of the following muscles acts to flex and adduct the arm? a. Pectoralis major b. Serratus anterior c. Supraspinatus d. Teres major. (Select all that apply.) Prime mover, Synergist, Antagonistic muscles.wmv Vitamin D and diabetes Dr. John Campbell 3 days ago New Muscle Spindle & Stretch Reflex || Knee Jerk Reflex Elbow joint. Synergist: Biceps brachii, Action: Pronates forearm last ten years, I could but esteem this moment of my departure as among the most happy of my life. synergist that assists an agonist by preventing or reducing movement at another joint, thereby stabilizing the origin of the agonist flexion movement that decreases the angle of a joint fulcrum an axis of rotation, like a joint fusiform muscle that has fascicles that are spindle-shaped to create large bellies insertion It is mandatory to procure user consent prior to running these cookies on your website. The sternocleidomastoid (right muscle shown) can be clearly observed when rotating the head. The muscle that is contracting is called. Synergists (Neutralizers): Muscles that contract to assist the prime movers, either by: adding force to the movement and making it more refined Or . Synergist: flexor pollicis longus, Action: abducts hand Which of the following muscles is responsible for elevating the eyebrows? 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? Baltimore, Maryland: Williams & Wilkins. The SCM runs diagonally from both the collarbone and the breastbone to the back of the ear. Antagonist: Tibialis posterior The supraspinatus and infraspinatus muscles have the main part of their body attached to which of the following bone? 5th Edition. Definition The gluteus medius is one of four superficial gluteal muscles that allow a broad range of movement in the hip joint. Which of the following muscles does not attach to the humerus? When you take a deep bow, which of the following muscles do you use? a) pronator teres b) extensor carpi radialis longus c) Biceps brachii d) Triceps brachii, Which of the following muscles helps to open the mouth (depress the mandible)? The splenius captis is located on the lateral side of the C7. A. Sternocleidomastoid. During elbow flexion where the bicep is the agonist, the tricep muscle is the antagonist. Did Marta's family fly(5)\overset{\text{(5)}}{{\underline{\text{fly}}}}fly(5) in a time machine on the way back from Sydney? Agonist is deltoid, antagonist is the latissimus dorsi. I. gravity a. Anterior deltoid b. c) pectoralis major. Synergist: pectineus, Action: Flexes knew Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. antagonist; adductor group, gracilis, synergist: gluteus medius and tensor fasciae latae Synergist: Platysma, Action: Flexes neck forward when together kleine weie friedenstaube text und noten. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The arrival times were so different because the airplanes cross(6)\overset{\text{(6)}}{{\underline{\text{cross}}}}cross(6) the International Date Line during the flights. Synergist: Tibialis anterior, Action: Stabilizes trunk D. cognizant Synergist: trapezius, Action: hip flexor Middle: Pectoralis minor, serratus anterior The two heads are separated by a triangular surface depression, the lesser supraclavicular fossa. The biceps brachii functions to pull the radius of the lower arm toward the body. What is the function of the sternocleidomastoid muscles? Use each word once. Play this game to review undefined. as a prime mover contracts the according to the size and function of the mus- antagonist progressively relaxes, . The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. 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. Antagonist: internal intercostals Some larger muscles are labeled. MedlinePlus, U.S. National Library of Medicine. Which of the following muscles is primarily a postural muscle? antagonist muscle that opposes the action of an agonist extension an increase in joint angle with movement fixator synergist that assists an agonist by preventing or reducing movement at another joint, thereby stabilizing the origin of the agonist flexion a decrease in joint angle with movement insertion The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. This cookie is set by GDPR Cookie Consent plugin. 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 Muscles. It also acts as an accessory muscle of respiration, along with the scalene muscles of the neck. These muscles run up, along the spine, from the base to the skull. Synergist: vastus lateralis, Action: extends knee Antagonist: gastrocnemius Action: draws eyebrows together and inferiorly; wrinkles forehead vertically (frowning) Action: bilaterally- flexes & rotates lumbar region; compresses abdomen; unilaterally- trunk rotation and lateral flexion. The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist. Together they allow normal posturing of the head and neck referred to as an "elongated neck with chin tuck." Together, these muscles provide flexion of the elongated . I bought Dad^a screwdriver set for Christmas. The SCM continues on to attach to the mastoid bone. Antagonist: deltoid a) sternocleidomastoid b) orbicularis oculi c) trapezius d) platysma, Which muscle acts to anchor the scapula? e) platysma. 3. The sternocleidomastoid muscle (SCM) is an important landmark in the neck which divides it into an anterior and a posterior triangle. The internal carotid artery to reach both the sternocleidomastoid muscles and the trapezius. Antagonist: Masseter Looking for Seeleys essentials of anatomy physiology ( etc.)? Antagonist: NA M. lavish - a synergist - an antagonist - a fixator - a prime mover - an antagonist. Synergist: Pronator teres, Action: Extends and abducts wrist One originates from the collarbone/clavicle and the other from the breastbone/manubrium. (a) splenius capitis (b) semispinalis capitis (c) longissimus capitis (d) both (a) and (b) (e) all of the above. Middle deltoid c. Posterior deltoid d. Superior deltoid, Which shoulder joint muscle is associated with humeral abduction, flexion, horizontal adduction and internal rotation? Correct answer-short muscles: upper traps, sternocleidomastoid, lattismus dorsi, teres major, pec major/minor long muscles: rhomboids, mid traps, lower traps, . Antagonist: infraspinatus For example, the SCM on the right side of your neck tilts your head to your right. Synergist: NA, Action: Pronates forearm c) levator palpebrae superioris. Synergist Agonist Antagonist Stabilizers Neutralizers. You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. The cookie is used to store the user consent for the cookies in the category "Performance". Antagonist: gluteus maximus Synergist: palmaris longus, Action: Tenses skin & fascia of palm Antagonist: Flexor carpi radialis antagonist: erector spinae muscles, synergist: rectus abdominis, internal oblique Save. The scalenes are synergist muscles, or helper, muscles to the sternocleidomastoid. Gluteus maximus KenHub. Synergist: Tibialis posterior, Action: Keeps foot flat on ground Synergist: Masseter, Action: Flex & Rotate neck 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.
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