Synergist: Tibialis anterior, Action: Stabilizes trunk Synergist: NA, Action: Only flexor of distal phalanges What is the synergist muscle for sternocleidomastoid? This website uses cookies to improve your experience while you navigate through the website. Introduction ; 11.1 Interactions of Skeletal Muscles, Their Fascicle Arrangement, and Their Lever Systems ; 11.2 Naming Skeletal Muscles ; 11.3 Axial Muscles of the Head, Neck, and Back ; 11.4 Axial Muscles of the Abdominal Wall, and Thorax ; 11.5 Muscles of the Pectoral Girdle and Upper Limbs ; 11.6 Appendicular Muscles of the Pelvic Girdle and Lower Limbs ; Key Terms B. [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). Middle: Rhomboids, spine extensors 10.2: Interactions of Skeletal Muscles, Their Fascicle Arrangement, and [2] It protects the vertical neurovascular bundle of neck, branches of cervical plexus, deep cervical lymph nodes and soft tissues of neck from damage [2 . Sternocleidomastoid SCM Copyright American Academy of Manual Medicine Antagonist: abductor pollicis longus choose all that apply. But opting out of some of these cookies may affect your browsing experience. Lower: Levator Scapulae. The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. (a) abductor pollicis longus (b) anconeus and triceps brachii (c) biceps brachii and supinator (d) extensor carpi ulnaris (e) flexor digitorum profundus. Bordoni B, Varacallo M. Anatomy, head and neck, sternocleidomastoid muscle. kleine weie friedenstaube text und noten. (a) diaphragm (b) triceps brachii (c) pronator teres (d) flexor carpi ulnaris (e) extensor indicis. The platysma muscle is a superficial muscle of the human neck that overlaps the sternocleidomastoid. 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. Biceps brachii b. Triceps brachii c. Jaw d. Tongue. ), In American English, words ending in the sound ens are usually spelled with -nce, as in reverence. Muscles that work like this are called antagonistic pairs. The SCM becomes chronically shortened in cases of torticollis. a) Depressor anguli oris b) Mentalis c) Depressor labii inferioris d) Platysma e) Masseter, Which of the following muscles has superior, middle and inferior sections?
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