Transverse Section - PelvisYou selected: rectus abdominusThe rectus abdominus muscle comprises the central region of the anterior abdominal wall. (It receives heavy usage during sit-ups.) The muscle is made of many segments, which produces the 'tortise shell' appearance of the abdomen in body builders. A tendinous sheath covers the rectus abdominus. This sheath is made of the aponeuroses of the three adjacent muscles on either side of the antierior abodomen - the external oblique, internal oblique, and transversus abdominus muscles. A small triangle of these muscles can be seen on either side of the rectus abdominus.iliopsoas muscle | colon | rectus abdominus | gluteal muscles | mesentary | pelvis | sacrum | Information Module Name: abd1820 Module Title: Transverse Section - Pelvis Image Info: Tansverse Section through the abdomen/pelvis; Visible Human Project. Created by: Lynn Bry Contact Email:bryl@medicine.wustl.edu Last modified: January 12th, 1997 Created with Annotation 1.0 |