ANATOMY 3300 Lecture Notes - Lecture 8: Accessory Nerve, Articular Tubercle, Zygomatic Process

• School: Ohio State University
• Department: Anatomy
• Course: ANATOMY 3300
• Professor: Melissa Quinn

Document Summary

Tuesday, july 25: neck, muscles of mastication, and tmj. Radiographic anatomy >head & neck: 9, 10, 12, 13 / cross sectional anatomy >head & neck: level 6, 8. Innervation = facial n (cn vii) = muscle of fascial expression = covers over clavicle up to the chin. Hyoid bone and thyroid cartilage are attached via thyrohyoid membrane. Two regions = lateral cervical and anterior cervical region divided by sternocleidomastoid m. Inferior root = c2-c3: provide motor innervation to cervical region, spinal accessory n. (cn xi) Borders: anterior = median line of neck, posterior = sternocleidomastoid m, superior = mandible, floor = pharynx, larynx, thyroid, roof = platysma m. Contents: suprahyoid mm = elevate hyoid bone, mylohyoid = in the middle, geniohyoid = v medial, stylohyoid = v lateral, digastric = anterior and posterior belly, tendon goes through a sling, infrahyoid mm.