psoas major


: the larger of the two psoas muscles that arises from the anterolateral surfaces of the lumbar vertebrae, passes beneath the inguinal ligament to insert with the iliacus into the lesser trochanter of the femur, and serves especially to flex the thigh

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Cite this Entry

“Psoas major.” Medical Dictionary, Merriam-Webster, Accessed 24 Jun. 2024.

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