Asked by: Suyog Taiber
asked in category: General Last Updated: 25th June, 2020

Which is the insertion of the obturator Internus?

The obturator internus originates from the obturator membrane, pubis, and ischium and then inserts onto the greater trochanter of the femur.

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Simply so, where does the obturator Internus insertion?

The obturator internus muscle originates from the inferior margin of the superior pubic ramus and from the pelvic surface of the obturator membrane. Its tendon exits the pelvis through the lesser sciatic foramen to insert onto the greater trochanter of the femur to laterally rotate the thigh.

Also, what does the obturator internus muscle do? Obturator internus. Its primary function is to help move the thigh away from the center of the body by rotating it in a sideways direction. When the thigh is flexed, it assists other muscles in moving the thigh outward, away from the midline of the body. It also helps to stabilize the hip joint.

Also to know is, which is the origin of the obturator Externus?

Obturator externus muscle

Origin Anterior surface of obturator membrane, bony boundaries of obturator foramen
Insertion Trochanteric fossa of femur
Action Hip joint: Thigh external rotation, thigh abduction (from flexed hip); Stabilises head of femur in acetabulum
Innervation Obturator nerve (L3, L4)

What causes obturator pain?

Obturator neuropathy is a difficult clinical problem to evaluate. One possible cause of pain is due to fascial entrapment of the nerve. Symptoms include medial thigh or groin pain, weakness with leg adduction, and sensory loss in the medial thigh of the affected side. MRI may detect atrophy in the adductors of the leg.

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