sternocleidomastoid synergist and antagonist

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. Other functions of the SCM include assisting in breathing, maintaining neck posture, and helping the temporomandibular joint (TMJ) function. KenHub. 1173185, T Hasan. Differentiate between: a. d. Splenius. [3][4] The sternocleidomastoid is thick and narrow at its centre, and broader and thinner at either end. Which of these muscles is not the muscle of inspiration? a. platysma b. occipitalis c. sternohyoid d. mylohyoid. When acting together it flexes the neck and extends the head. Variations Of The Sternocleidomastoid Muscle: A Literature Review. a) Zygomaticus major b) Digastric c) Sternohyoid d) Depressor anguli oris. 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? (a) What does the king specify as his wish for Mari Djata? Get Top Tips Tuesday and The Latest Physiopedia updates, The content on or accessible through Physiopedia is for informational purposes only. Rotation of the head to the opposite side or obliquely rotate the head. 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. Synergist: Extensor carpi radialis longus, Action: Extends and adducts wrists Which of the following muscles produces the main flexion of the elbow? Antagonist: Masseter Would you show Carl and him the photograph? Middle: Rhomboids, spine extensors E. The sternocleidomastoid is the synergist and the splenius cervicis is the fixator. What is the function of the sternocleidomastoid muscles? Synergist: trapezius, Action: extends or hyperextends head D. The sternocleidomastoid is the fixator and the splenius cervicis is the prime mover. Seeleys essentials of anatomy physiology ( etc.) Synergist: psoas, Action: adducts thigh Baltimore, Maryland: Williams & Wilkins. (a) sternocleidomastoid (b) splenius capitis (c) semispinalis cervicis (d) scalenus anterior. Antagonist: Palmaris longus For intermediary anatomy students learning skeletal and muscle structure. Torticollis. Flexion of the head and cervical spine when anterior fibers act bilaterally Agonists: Longus Capitis Antagonists: Longissimus Capitis Spinalis Capitis Splenius Capitis Semispinalis Capitis Sternocleidomastoid (posterior fibers) 3. Synergist: Gluteus maximus, Action: Medially rotates leg at thigh Antagonist: Tibialis anterior The manubrium is the uppermost section of the breastbone. d) occipitalis. (a) Teres major (b) Supraspinatus (c) Biceps brachii (d) Brachialis (e) Pectoralis major. The major muscles of the neck include the semispinalis capitis, splenius capitus, levator scapulae, scalenes, trapezius, sternohyoid, onohyoid, and the sternocleidomastoid. This cookie is set by GDPR Cookie Consent plugin. Antagonist: abductor pollicis longus Antagonist: gluteus maximus For example, the scalenes are synergist muscles to the sternocleidomastoids (SCM), because they help with turning and tilting the head and neck. 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. What are various methods available for deploying a Windows application? Synergist: flexor carpi ulnaris, Action: adducts hand Which muscle acts as a synergist with pectorals minor during abduction of the scapula? It can also occur with certain health conditions, such as asthma and. Analytical cookies are used to understand how visitors interact with the website. The mutual links between muscle pain and resting electromyographic (EMG) activity are still controversial. The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. Antagonist: Extensor digitorium longus The SCM muscle helps turn and bend your neck. a) biceps femoris b) brachioradialis c) triceps brachii d) pectoralis major e) deltoid. For each verb form that is underlined, choose the letter of the best revision. Sternocleidomastoid muscle - Wikipedia 11.2 Explain the organization of muscle fascicles and their role in Synergist: Tibialis anterior, Action: Stabilizes trunk This cookie is set by GDPR Cookie Consent plugin. Synergist: Psoas, Action: stabilizes pelvis Excellent visuals! antagonist: triceps brachii, synergist: biceps brachii The sternocleidomastoid muscles (SCM) help with functions such as head rotation, head tilt, pointing the chin toward the breastbone, and more. It does not store any personal data. Capt. Antagonist: Digastric Antagonist: external intercostals K. irascible (a) Brachialis (b) Pronator quadratus (c) Biceps brachii (d) Supinator. When refering to evidence in academic writing, you should always try to reference the primary (original) source. Clavo-trapezius (posterior; superior to acromio-trapezius) . Antagonist: Gracilis Finally, look up each word in the dictionary and record the definitions on the lines below. Antagonist: Temporalis In this situation, the SCM also turns the face upward just a little, adding in a bit of neck extension. (b) Ansa cervicalis. "5. Treatment involves physiotherapy exercises to stretch the involved muscle and strengthen the muscle on the opposite side of the neck. Churchill Livingstone. (b) The glenohumeral joint allows for movement in which dimensions? Synergists (Neutralizers): Muscles that contract to assist the prime movers, either by: adding force to the movement and making it more refined Or . They assist the SCM in turning and tilting both the head and neck. Synergist: flexor digitorium superficialis, Action: Synergist to supinate arm H. erroneous Vascular supply: Muscular branches of the ascending Cervical artery. This can cause atrophy (shrinking) in the affected SCM and may cause difficulty in turning the head and bending the neck. a) temporalis. The sternocleidomastoid muscles flex the neck and the splenius cervicis muscles extend it. A. Which of the following muscles supinates the forearm? Antagonist: deltoid We describe the main muscle that does an action as the agonist. The supraclavicularis muscle arises from the manubrium behind the sternocleidomastoid and passes behind the sternocleidomastoid to the upper surface of the clavicle. antagonist: quadriceps femoris muscles, synergist: soleus load is the weight of the object. Developmentally, these additional muscle slips indicate abnormal mesodermal splitting in posterior sixth branchial arch. Synergist: Masseter, Action: Wrinkles chin 3rd. Sternocleidomastoid - Physiopedia a) Gluteus maximus b) Iliopsoas c) Extensor hallucis longus d) Lumbricals e) Dorsal interosseous, Which of the following muscles acts primarily to plantarflex toes 2-5? Synergist: NA, Action: Only flexor of distal phalanges Michael Menna, DO, is a board-certified, active attending emergency medicine physician at White Plains Hospital in White Plains, New York. G. enmity antagonist: quadriceps femoris muscles, synergist: adductor muscles d) buccinator. Antagonist: Latissimus dorsi Antagonist: gluteus maximus By clicking Accept, you consent to the use of ALL the cookies. One side can contract, or both sides can contract. Encircles mouth, inserts into muscle/skin at mouth angle. Nerve Supply: Cervical nerve 7. Antagonist: Palmaris longus The cookie is used to store the user consent for the cookies in the category "Analytics". (a) Auricular. Effects of experimental muscle pain on muscle activity and co antagonist; erector spinae, synergist: hamsting muscles Antagonist: Gluteus maximus (adsbygoogle = window.adsbygoogle || []).push({}); For Pain and Symptom Information See: Sternocleidomastoid Muscles: Head, Eyes, Sinus, Ears, Throat Pain. a) triceps brachii b) brachialis c) brachioradialis d) coracobrachialis e) anconeus, When the biceps brachii flexes, what is the antagonist? Upload your PDF on PubHTML5 and create a flip PDF like Seeleys essentials of anatomy physiology ( etc. a. Subscapularis b. Pectoralis major c. Infraspinatus d. Supraspinatus e. Latissimus dorsi, Which of the following muscles is attached to the medial border of the ventral surface of scapula : a-levator scapula b-rhomboides minor c- rhomboides major d-serratus anterior, Which of the following intrinsic muscles of the hand do not make up the thenar eminence? Synergist: teres minor, Action: Lifts ribs Which of the following muscles is most active during flexion of the arm/glenohumeral joint? Etymology and location [ edit] Synergist: Brachioradialis, Action: Extends thumb Antagonist: sartorious It also acts as an accessory muscle of inspiration. The clavicular origin of the sternocleidomastoid varies greatly: in some cases the clavicular head may be as narrow as the sternal; in others it may be as much as 7.5 millimetres (0.30in) in breadth. The cookies is used to store the user consent for the cookies in the category "Necessary". Become a Study.com member to unlock this answer! Correct answer-short muscles: upper traps, sternocleidomastoid, lattismus dorsi, teres major, pec major/minor long muscles: rhomboids, mid traps, lower traps, . a. Abductor pollicis brevis b. Opponens pollicis c. Flexor pollicis brevis d. Extensor pollicis longus, Which of the following muscles is (only) responsible for scapular protraction, downward rotation, and depression? Gluteus Medius - The Definitive Guide | Biology Dictionary a. coracobrachialis b. latissimus dorsi c. levator scapulae d. pectoralis minor, Which of the following muscles is responsible for scapular elevation, retraction, and downward rotation? 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? An impairment or injury to the spinal accessory nerve can cause weakness or paralysis to the SCM. B. Muscles: Action, Synergist and Antagonist (cat) - Quizlet