Bassett Collection of Stereoscopic Images of Human Anatomy
Dissection of anterolateral abdominal wall
Pyramidalis muscle, anterior view; nerve and artery to muscle
Image #134-7
KEYWORDS: Muscles and tendons, Peripheral nervous system, Vasculature.
Creative Commons
Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.
For additional information regarding use and permissions, please contact the Medical History Center.
Dissection of anterolateral abdominal wall
Pyramidalis muscle, anterior view; nerve and artery to muscle
The rectus sheath has been opened to the right of the midline. The aponeurosis of the external oblique (3) has been reflected on the right side and on the left it has been cut off lateral to the midline (10). The nerve (5) which reaches the right pyramidalis muscle (4) is a branch of the iliohypogastric nerve in this specimen.
- Right rectus abdominis muscle
- Sheath of rectus abdominis muscle (cut edge)
- Aponeurosis external oblique muscle
- Right pyramidalis muscle
- Artery and nerve entering pyramidalis muscle
- Superficial inguinal lymph node
- Superficial fascia
- Linea alba
- Sheath of rectus abdominis muscle
- Upper pointer: Aponeurosis external oblique muscle (cut off) Lower pointer: Reflected inguinal ligament
- Left pyramidalis muscle (faintly visible through rectus sheath)
- Iliohypogastric nerve
- Conjoint tendon
- Ligamentum teres (of uterus)
- Pubic tubercle
- Pubic symphysis (covered by sheath of rectus)
- External pudendal artery