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popliteus (muscle)


Definition: muscle forming floor of popliteal fossa; origin, lateral condyle of femur; insertion, posterior surface of tibia above oblique line; action, from the fully extended and “locked” position, rotates the femur medially, on the fixed (planted) tibial plateau about 5°, “unlocking” the knee to enable flexion to occur; nerve supply, tibial.

Synonym(s): musculus popliteusTA, popliteal muscle, popliteus3

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.