The rectus abdominis is a __________ muscle,while the rectus femoris is a __________ muscle.
A) fusiform;parallel
B) parallel;bipennate
C) convergent;unipennate
D) bipennate;parallel
E) multipennate;convergent

Question

Quizplus · Accepted Answer

The rectus abdominis is a parallel muscle, characterized by fibers running parallel to its long axis, facilitating flexion of the vertebral column. The rectus femoris, part of the quadriceps group, is a bipennate muscle, with fibers oriented at an angle to the central tendon, allowing for greater force production, especially in leg extension.

The Rectus Abdominis Is a __________ Muscle,while the Rectus Femoris