Question

question 4
identify the muscle indicated by the \x\ above.
□ rectus abdominis
□ pectoralis major
□ external oblique
□ internal oblique

Explanation:

The marked muscle is the paired, segmented vertical muscle of the anterior abdominal wall, which matches the description of the rectus abdominis. The other options are incorrect: pectoralis major is in the chest, external and internal obliques are the side abdominal muscles with a diagonal fiber orientation.

Answer:

Rectus abdominis