Muscles of the Neck

Question 1

Platysma

Answer 1

a broad muscle extending from the chest and shoulder muscles to the side of the chin. It is responsible for lowering the lower jaw and lip.

Question 2

Sternocleidomastoid

Answer 2

the muscle extending along side of the neck from the ear to the collarbone. It acts to rotate the head from side to side and up and down.