MUSCULUS OBTURATOR EXTERNUS Meaning and
Definition
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Musculus obturator externus, also known as the external obturator muscle, is a flat and triangular muscle located in the hip and pelvic regions of the human body. It arises from the outer surface of the obturator membrane, as well as the surrounding bones including the pubic bone and ischium.
The musculus obturator externus plays a crucial role in the movement and stabilization of the hip joint. It functions as an external rotator of the thigh, meaning it helps rotate the thigh away from the midline of the body. Additionally, it assists in abduction of the thigh, which involves moving the leg away from the center of the body.
In terms of its structure, the muscle consists of a thin, flat tendon that emerges from the lower part of the muscle belly. This tendon then passes through the lesser sciatic foramen, a small opening in the pelvis, to attach to the femur bone.
The musculus obturator externus is innervated by the obturator nerve, which originates from the lumbar plexus. Its blood supply is predominantly derived from branches of the obturator artery.
In summary, the musculus obturator externus is a triangular muscle located in the hip and pelvic regions. It aids in external rotation and abduction of the thigh.
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Origin, lower half of margin of thyroid foramen and adjacent part of external surface of obturator membrane; insertion, digital fossa of great trochanter; nerve supply, obturator; action, rotates thigh outward.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for MUSCULUS OBTURATOR EXTERNUS
- mus culus obturator externus
- musc ulus obturator externus
- muscu lus obturator externus
- muscul us obturator externus
- musculu s obturator externus
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- musculus ob turator externus
- musculus obt urator externus
- musculus obtu rator externus
- musculus obtur ator externus
- musculus obtura tor externus
- musculus obturat or externus
- musculus obturato r externus
- musculus obturator e xternus
- musculus obturator ex ternus
- musculus obturator ext ernus
- musculus obturator exte rnus
- musculus obturator exter nus
- musculus obturator extern us
- musculus obturator externu s
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