Transverse Abdominus

Transverse Abdominus

Pictured above is the transverse abdominus muscle. It tightens the space between your ribs and hips and flattens your belly. It works with the other core muscles primarily to stabilize the abdominal region and hold your spine steady while you move your body or lift something. You are not as likely to need to stretch and practice SMR on the transverse abdominus as the oblique muscles. However, be sure to check the PSOAS in particular, as it is EXTREMELY LIKELY to have knots that need attention.

The muscles are layered, showing how some of the muscles are covered by the others. All of the muscles are see-through so that you can appreciate the location and size of each muscle relative to the others. You can access detail for all the muscles in the body with our Coach membership.

Click here for a list of all the muscles.

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Muscles that attach to the hip and the spine and/or ribs

  1. Rectus Abdominus
  2. External Abdominal Oblique
  3. Internal Abdominal Oblique
  4. Transverse Abdominus
  5. Latissimus Dorsi
  6. Iliocostalis Lumborum
  7. Longissimus Thoracis
  8. Quadratus Lumborum
  9. Multifidi


Muscles that attach to the thigh bone from either the spine or hip bone above (attached anywhere on the femur)

  1. Psoas
  2. Iliacus
  3. Rectus Femoris
  4. Tensor Fasciae Latae
  5. Sartorius
  6. Gracilis
  7. Adductor Magnus
  8. Adductor Longus
  9. Adductor Brevis
  10. Pectineus
  11. Gluteus Maximus
  12. Gluteus Medius
  13. Gluteus Minimus
  14. Piriformis
  15. Superior Gemellus
  16. Obturator Internus
  17. Inferior Gemellus
  18. Quadratus Femoris
  19. Biceps Femoris - Long Head
  20. Semitendonosis
  21. Semimembranosis


Good luck working out those tight knots.

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