Muscles of the Neck

10 cards·by bpieri

Digastric

consists of two bellies united by a tendon; assumes of a v-shaped configuration under chin; opens the mouth and depresses mandible

stylohyoid

elevates and retracts the hyoid bone

mylohyoid

forms floor of mouth; elevates hyoid bone and base of tongue during swallowing

sternohyoid

strap-like muscle running medially along neck; depresses the larynx

sternothyroid

lateral and deep to sternohyoid with the same function as sternohyoid

omohyoid

lateral to sternohyoid; same function as sternohyoid

thyrohyoid

appears as a continuation of sternothroid muscle ; depresses hyoid bone; elevates larynx

sternocleidomastoid

contraction of both muscles of pair causes flexion of neck forward; rotates head toward shoulder

platysma

neck muscle that plays a role in facial expression; depresses mandible, produces downward sag of the mouth

Scalenes-anterior, middle, and posterior

flex and slightly rotate neck; elevate ribs 1-2