Question

he rectus abdominis is a__________ muscle, while the rectus femoris is a muscle.
fusiform; parallel
parallel; bipennate
convergent; unipennate
bipennate; parallel
multipennate; convergent

Explanation:

The rectus abdominis is a parallel - type muscle. Its fibers run parallel to each other. The rectus femoris is a bipennate muscle. In a bipennate muscle, the muscle fibers are arranged on both sides of a central tendon.

Answer:

B. parallel; bipennate