click below
click below
Normal Size Small Size show me how
Stack #54005
Muscles of abdominal wall and ribs
Muscle | Origin | Insertion | Action |
---|---|---|---|
External oblique | R's 5-12 | iliac crest, linea alba | compresses abdomen, rotation of vertebral column |
Internal oblique | iliac crest, inguinal ligament, lumbodorsal fascia | linea alba, xiphoid process, inferior ribs | compresses abdomen, rotation of vertebral column |
Transversus abdominis | iliac crest, inguinal ligament, lumbodorsal fascia & cartilages of R's 6-12 | linea alba, pubis | compressess abdomen |
External intercostals | inferior border of each rib | superior border of the rib below | elevates rib |
Internal intercostals | superior border of each rib | inferior border of the rib above | depresses rib |