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MOINA of the Neck

Origin, Insertion, Nerve supply, Action of muscles of the Neck

QuestionAnswer
What muscle originates at the deep fascia over pectoralis major and deltoids? Platysma
Inserted at the body of mandible and angle of the mouth Platysma
Innervated by the facial nerve cervical branch (CN VII) Platysma
Depresses the mandible and angle of the mouth Platysma
Muscle that originates at manubrium sterni and medial 3rd of the clavicle Sternocleidomastoid
What muscle is inserted at the mastoid process of the temporal bone and occipital bone? Sternocleidomastoid
Innervated by the spinal part of accessory nerve and C2, C3 (CN XI) Sternocleidomastoid
Two muscles acting together to extend the head and flex the neck; one muscle rotates the head to the opposite side Sternocleidomastoid
What muscle originated at the body of mandible? Anterior belly of digastric muscle
Innervated by the nerve to mylohyoid Anterior belly of digastric muscle
What muscle originates at mastoid process of temporal bone Posterior belly of digastric muscle
Inserted at intermediate tendon (held to hyoid bone by fascial sling) Digastric
Depresses the mandible/ elevates hyoid bone Digastric
What muscle is originated at styloid process Stylohyoid
Muscle(s) innervated by facial nerve (CN VII) Stylohyoid and Posterior belly of digastric muscle
What muscle elevates the hyoid bone? Stylohyoid
Originated at mylohyoid line of body of mandible Mylohyoid
Inserted at the body of hyoid bone and fibrous raphe Mylohyoid
Innervated by the inferior alveolar nerve Mylohyoid
It elevates floor of the mouth and hyoid bone/ depresses the mandible Mylohyoid
Originated at inferior mental spine of mandible Geniohyoid
What muscle elevates the hyoid bone/ depresses mandible Geniohyoid
Muscle originated at manubrium sterni and clavicle Sternohyoid
Depresses the hyoid bone Sternohyoid
Muscle(s) inserted at the body of hyoid bone Stylohyoid, Geniohyoid, Sternohyoid, and Mylohyoid
Originated at Manubrium sterni Sternothyroid
Inserted at oblique line on lamina of thyroid cartilage Sternothyroid
Depresses the larynx Sternothyroid
Originated at oblique line on lamina of thyroid cartilage Thyrohyoid
Inserted at lower border of hyoid bone Thyrohyoid
Depresses hyoid bone/ elevates the larynx Thyrohyoid
Muscle(s) innervated by the first cervical nerve Geniohyoid and Throhyoid
Originates at upper margin of scapula and suprascapular ligament Inferior belly of Omohyoid
What muscle originated at lower border of body of hyoid bone Superior belly of Omohyoid
Inserted at intermediate tendon (held to clavicle and 1st rib by fascial sling) Omohyoid
It depresses the hyoid bone Omohyoid
Muscle(s) innervated by the ansa cervicals; C1, C2, C3 Sternohyoid, Sternothyroid, and Omohyoid
Originated at transverse processes of 3rd, 4th, 5th, and 6th cervical vertebrae Scalenus anterior
Innervated by C4, C5, and C6 Scalenus anterior
Originated at transverse processes of upper 6 cervical vertebrae Scalenus medius
Muscle(s) inserted at first rib Scalenus anterior and Scalenus medius
What muscle(s) elevates 1st rib; laterally flexes and rotates cervical part of the vertebral column? Scalenus anterior and Scalenus medius
Originated at transverse process of lower cervical vertebrae Scalenus posterior
Inserted at second rib Scalenus posterior
It elevates second rib; laterally flexes and rotates cervical part of the vertebral column Scalenus posterior
Innervated by the anterior rami of cervical nerves Scalenus medius and Scalenus posterior
Created by: alssndr
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