Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
The sternocleidomastoid muscle inserts on the ________.
A
zygomatic arch
B
occipital condyle
C
mandibular condyle
D
mastoid process of the temporal bone
Verified step by step guidance
1
Step 1: Begin by identifying the sternocleidomastoid muscle, which is a paired muscle located in the neck. It plays a role in head rotation and flexion.
Step 2: Understand the anatomy of the sternocleidomastoid muscle. It has two points of origin: the manubrium of the sternum and the clavicle. The insertion point is where the muscle attaches after crossing the neck.
Step 3: Recall that the insertion point of a muscle is typically the movable attachment site. For the sternocleidomastoid, this is the mastoid process of the temporal bone, located behind the ear.
Step 4: Eliminate the incorrect options: The zygomatic arch is part of the cheekbone, the occipital condyle is part of the skull base near the spine, and the mandibular condyle is part of the jaw. None of these are related to the sternocleidomastoid muscle's insertion.
Step 5: Confirm that the correct insertion point is the mastoid process of the temporal bone, which is consistent with the muscle's function and anatomical location.