Spasms of this straplike muscle often result in wryneck or torticollis.

Spasms of this straplike muscle often result in wryneck or torticollis.

Spasms of this straplike muscle often result in wryneck or torticollis. 










A) serratus anterior
B) zygomaticus
C) platysma
D) sternocleidomastoid











Answer: D