Anterior Neck Flashcards
Platysma Origin/Insertion
Skin of the anterior neck
Platsyma Action
Tightens skin of neck
Platysma Innervation
Facial (Cranial VII)
Sternocleidomastoid Origin
Mastoid and lateral superior nuchal line
Sternocleidomastoid Insertion
Manubrium and medial 1/3 clavicle
Sternocleidomastoid Action
Unilateral- tilts head to saem side and rotates face toward opposite side
Bilateral- flex head on the neck
with the head held stable, it can flex the neck
Sternocleidomastoid Innervation
Spinal Accessory and C2
Sternohyoid Attachments
Runs from posterior manubrium and medial clavicle to body of hyoid
Sternohyoid Innervation
Ansa Cervicalis (C1-C3)
Sternothyroid Attachments
Posterior manubium and 1st costal cartilage to thyroid cartilage
Sternothyriod Innervation
Ansa Cervicalis (C1-C3)
Thyrohyoid Attachments
Courses from thyroid cartilage to body and greater horn of hyoid bone
Thyrohoid Innervation
Ansa Cervicalis (C1-C3)
Omohyoid Attachments
Inferior- upper border of scapula, runs intermediate tendon
Superior- intermediate tendon to hyoid
Omohyoid Innervation
Ansa Cervicalis (C1-C3)