Internal obturator muscle

Internal Obturator Muscle

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The internal obturator muscle, seen from within the lesser pelvis.

The Internal Obturator Muscle is a thin, fan-shaped muscle located in the pelvic region of the human body. It is part of the muscular system and plays a crucial role in the movement and stabilization of the hip joint.

Anatomy

The internal obturator muscle originates from the inner surface of the pelvic bone, specifically the obturator membrane and the surrounding bones. It exits the pelvis through the lesser sciatic foramen and inserts into the greater trochanter of the femur.

Function

The primary function of the internal obturator muscle is to assist in the lateral rotation of the hip joint. It also helps to stabilize the hip joint by pulling the head of the femur into the acetabulum, or hip socket.

Clinical Significance

Dysfunction or injury to the internal obturator muscle can lead to pain and limited mobility in the hip joint. This can be caused by a variety of factors, including trauma, overuse, or certain medical conditions such as pelvic floor dysfunction.

See Also

• External Obturator Muscle
• Hip Muscles
• Pelvic Floor