Pyramidalis muscle
| Pyramidalis muscle |
|---|
|
| Abdominal muscles of man |
| origin |
| Ramus superior ossis pubis and symphysis pubica |
| approach |
| Linea alba |
| function |
| tightens the linea alba |
| Innervation |
| Subcostal nerve |
| Spinal segments |
| Th12 |
The pyramidalis muscle ( Latin for "pyramidal muscle ") is one of the abdominal muscles . The skeletal muscle lies in front of the insertion of the rectus abdominis muscle and is enclosed by the rectus sheath . It is a rudimentary muscle that is functionally almost insignificant in humans and is completely absent in 10 to 25 percent of cases. It rises from the pubic bone and attaches it to the linea alba , stretching it towards the pelvis.
literature
- Michael Schünke : Functional Anatomy. Topography and function of the movement system . Georg Thieme Verlag, Stuttgart 2000, ISBN 978-3-13-118571-6 , p. 195.