Question

multiple choice question

which muscle is the prime mover of neck flexion?

Explanation:

Identify the target action

The question asks for the prime mover of neck flexion. Neck flexion is the movement where the head is tilted forward toward the chest.

Determine the prime mover muscle

Using the Prime Mover and Sternocleidomastoid Muscle knowledge points

• A prime mover (agonist) is the main muscle responsible for producing a specific movement.
• The sternocleidomastoid muscle, when contracting bilaterally (both sides together), pulls the head forward and down, acting as the primary muscle (prime mover) responsible for neck flexion.

Answer:

Sternocleidomastoid