What is the primary flexor of the spine?
A) Internal oblique
B) Rectus abdominis
C) Transverse abdominis
D) External oblique

Question

Quizplus · Accepted Answer

The rectus abdominis is the primary flexor of the spine. It is a long, flat muscle that extends from the pubic bone to the sternum and acts to flex the trunk forward. The internal and external oblique muscles and transverse abdominis also contribute to spinal flexion, but to a lesser extent.

What Is the Primary Flexor of the Spine