This region of the neck is defined by the sternocleidomastoid muscle anteriorly. It contains many nerves.
A)trapezoid space
B)posterior triangle
C)anterior triangle
D)anterior line

Question

Quizplus · Accepted Answer

The posterior triangle of the neck is defined by the sternocleidomastoid muscle anteriorly, the trapezius muscle posteriorly, and the clavicle inferiorly. It contains many important nerves, including the accessory nerve (CN XI), cervical plexus, and parts of the brachial plexus.

This Region of the Neck Is Defined by the Sternocleidomastoid