EXTERNAL ROTATORS OF THE HIP-OBTURATOR INTERNUS
From NeuroRehab.wiki
SUMMARY
1. O: pelvic surface of the obturator membrane & surrounding bone. Passes through the lesser sciatic foramen, makes a right-angled turn around the lesser sciatic notch.
2. I: together with the superior and inferior gamelli (forming the tricipital tendon) it is inserted into the medial surface of the greater trochanter.
3. NS: nerve to the obturator internus.
4. A: externally rotates the thigh.
Image: Beth ohara~commonswiki [CC BY-SA 3.0], via Wikimedia Commons [Accessed 13 Apr. 2019].
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.
