Medically reviewed by Alicen Nelson MD, MPH The navel, also known as the belly button or umbilicus, is a small, round, or ...

A diagram of the human abdominal muscle anatomy. The core consists of multiple abdominal muscles including the rectus abdominis, external and internal obliques, transverse abdominis, as well as ...

First, a quick anatomy lesson. The transverse abdominis is one of the four major abdominal muscles, says Alyssa Parten, PhD(c), MS, CSCS, a NSCA-certified personal trainer, strength and ...

The rectus abdominis muscle, commonly referred to as your six-pack, is an important postural muscle. The abdominal muscles also help with essential tasks like breathing and are turned on when we ...