Rectus Abdominus- Functional Anatomy

Rectus Abdominus

Rectus abdominus connects the 5th, 6th and 7th rib to the pubic bone through the spine and sacrum.

Origin – pubic crest, tubercle, and symphysis

Insertion – ribs 5-7, (primarily rib 5) and the xiphoid process (when present)

Function – flexion of the trunk, assists in exhalation

Transverse view of the abdominal sheath

The rectus abdominus is encased in the rectus sheath, which connects it to the other rectus abdominus medially via the linea abla, and to the obliques and transverse abdominus laterally.

Wikipedia entry for rectus adominus



Tony Preston has a practice in Atlanta, Georgia where he sees clients.

He has written and taught about anatomy, trigger points and cranial therapies since the mid-90s.

Question? Comment? Typo?
The Body
(404) 226-1363