Muscle origin
Ischial spine (superior) and Ischial tuberosity (inferior)
Muscle insertion
Medial surface of greater trochanter of femur via the tendon of obturator internus.
Muscle function
Hip external rotation, hip abduction when hip is flexed.
Nerve innervation
L5-S1 (Lovett reactor C1)
Primary muscle type
Tonic / Type I (60-70%)
Myofascial lines
Primary inhibatory muscles
Related joints
Organ relationship (T1-L2 , Sacrum, n. Vagus)
Associated muscles