MUSCLES-GLUTEUS MEDIUS AND MINIMUS

SUMMARY

1. GLUTEUS MEDIUS - arises from the gluteal surface of the ileum, between the middle and posterior gluteal lines. It is inserted into the upper lateral surface of the greater trochanter. A bursa separates the greater trochanter and its tendon.
 
2. GLUTEUS MINIMUS - arises from the gluteal surface of the ileum, b/w the middle and inferior gluteal lines; it is attached to the anterior surface of the greater trochanter.

3. Both muscles are supplied by the superior gluteal nerve. Both abduct + medially rotate the thigh at the hips. 

4. Superior gluteal nerve - emerges from the greater sciatic notch above the piriformis and runs between the gluteus medius and minimus (supplying both). 

5. Superior gluteal artery - emerges from the greater sciatic notch above the piriformis to give superficial and deep branches. The deep branch runs between the gluteus medius and minimus to divide further. 

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.