Which of the abdominal muscles listed is the most superficial and lateral?
A) rectus abdominis
B) internal oblique
C) transverse abdominis
D) external oblique
D
Explanation:
A) The rectus abdominis is the abdominal muscle on which the external oblique, internal oblique, and transverse abdominis all insert. It is a long, ribbon-like muscle in the midline of the ventral surface of the abdomen.
B) The internal oblique lies deep to the external oblique and is the second of the three lateral layers of the abdominal wall.
C) The transverse abdominis is deep to the internal oblique and forms the deepest layer of the abdominal wall.
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