Muscle
Superior gemellus
Lateral rotator (with obturator internus)
High-yield
Reinforces obturator internus; shares the nerve to obturator internus.
Overview
A small muscle above obturator internus tendon that reinforces its lateral-rotation action on the hip.
Reference facts
- Origin
Ischial spine
- Insertion
Medial surface of the greater trochanter (with obturator internus tendon)
- Action
Laterally rotates the extended thigh; abducts the flexed thigh
- Innervation
Nerve to obturator internus (L5, S1, S2)
- Blood supply
Inferior gluteal / internal pudendal arteries