Espiral AtlasPyramidalis muscle
musculus pyramidalis
It tenses the linea alba. A small, triangular, inconstant muscle (absent in about 20% of people), in front of the lower part of the rectus abdominis, inside the rectus sheath; when present, its insertion on the linea alba is a landmark for the midline incision.
In the full entry
The full entry, with every field, sources, quiz and clinical correlations, is in the atlas.
- Origin
- Insertion
- Innervation
- Blood supply