Accessory, C2 And C3 Cervical Nerves Flashcards
1
Q
Sternocleidomastoid
A
Origin: anterior surface of sternum and upper surface of clavicle
Insertion:Mastoid process
Action: laterally flexes neck to the same side , rotates head to the opposite side. Pull the head forward and down ; aid in forceful inhalation by elevating sternum and first ribs
