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What does the obturator nerve supply in the thigh?

What does the obturator nerve supply in the thigh?

The obturator nerve innervates all the muscles in the medial compartment of the thigh – except the hamstring part of the adductor magnus (innervated by the tibial nerve).

What happens when the obturator nerve is stimulated?

Electrical stimulation of the nearby obturator nerve during electroresection of lateral wall tumors can result in a powerful adductor spasm of the leg known as an “obturator jerk”. An obturator jerk during TURBT greatly increases the risk of bladder perforation.

What happens if the obturator nerve is damaged?

Muscle weakness in your thigh. Numbness in your thigh. Pain that gets worse with side-to-side leg movements. Sensation of pins and needles in your groin.

What does the obturator nerve control?

The obturator nerve (L2–L4) supplies the pectineus; adductor (longus, brevis, and magnus); gracilis; and external obturator muscles. This nerve controls adduction and rotation of the thigh. A small cutaneous zone on the internal thigh is supplied by sensory fibers.

What is the difference between femoral nerve and obturator nerve?

This is the femoral nerve, this is the obturator nerve. The white structure between them is the psoas major tendon. Both these nerves arise from the lumbar plexus, which lies up here within the thickness of the psoas major muscle. The femoral nerve emerges lateral to psoas major, the obturator nerve medial to it.

Which of the following muscles is innervated by the obturator nerve?

To sum up, the obturator provides motor innervation to the adductor longus, adductor brevis, gracilis, obturator externus and ischiocondylar part of adductor magnus muscle. Its cutaneous distribution covers the skin of the proximal part of the medial thigh, as well as the hip and knee joints.

What are the signs and symptoms of obturator nerve entrapment?


  • Pain & paresthesias may extend from hip to knee along the medial aspect of the thigh.
  • Extension or lateral leg movement can increase pain.
  • May have trouble walking or experience leg weakness due to problems adducting the ipsilateral hip.

How do you test the obturator nerve?

Currently, an obturator nerve injury is diagnosed via physical examination and imaging studies [including magnetic resonance imaging (MRI), computed tomography (CT), or ultrasonography]. However, these techniques are not always effective in detecting nerve injuries (1).

What nerve controls the inner thigh?

The femoral nerve is the major nerve that serves the tissues of the thigh and leg, including the muscles and skin. While the much larger sciatic nerve also passes through the thigh on its way to the lower leg and foot, only the femoral nerve innervates the tissues of the thigh.

Which leg movement would be impaired by injury to the obturator muscles?

Which leg movement would be impaired by injury to the obturator muscle? Injury to the obturator muscle would impair your ability to laterally rotate the hip.

What nerve innervates the anterior thigh?

the femoral nerve
The innervation of the anterior compartment of the thigh is from the femoral nerve (L2 through L4).

What causes tight obturator?

The obturator internus can become tensioned or spasmed from overworking, muscle imbalances, injuries, and postural changes. Some symptoms of obturator internus muscle tension include: Hips that feel tight and your feet always seem to be rotated out.

What does it mean when it hurts to lift your leg?

A groin strain is an overstretch or tearing injury to the muscles of the inner thigh or front of the hip. Groin strains make walking, lifting the knee, or moving the leg away from or toward the body difficult and painful. Groin strains can occur from overuse of the muscles, or from a sudden contraction of the muscles.

What nerve affects front of thigh?

The femoral nerve is located in the pelvis and goes down the front of the leg. It helps the muscles move the hip and straighten the leg. It provides feeling (sensation) to the front of the thigh and part of the lower leg.

What nerve Innervates the thigh muscles?

The femoral nerve
The femoral nerve innervates the sartorius, pectineus, and quadriceps femoris, and iliacus muscle of the iliopsoas. It receives nerve supply by the nerve roots L2 through L4, innervating both the hip flexor and quadriceps muscle groups. The femoral nerve is also responsible for anterior thigh and medial leg sensation.

How do you internally release an obturator internus?

Obturator internus stretch: In standing, bring your left knee up on a table keeping your back leg straight. Lean forward until you feel a stretch in glute area. Hold for 30 seconds, repeat 2x/daily.

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