Adductor Magnus/Longus/Brevis actions?

Adductor Magnus/Longus/Brevis actions?

• A. Abduction and extension at hip
• B. Adduction, flexion, and medial rotation at hip
• C. Flexion at knee
• D. Lateral rotation at hip

Answer: (B)

These muscles are the primary hip adductors, meaning they pull the thigh toward the midline. Their fibers run in a way that, when they contract, they not only bring the leg inward but also assist with moving the hip in a forward direction and rotating the thigh inward when the hip is flexed. The adductor longus and brevis lie more toward the front, so they contribute to flexion of the hip as they adduct, while the magnus has parts that both flex (adductor part) and extend (hamstring part) the thigh. Overall, their common action is adduction of the hip with additional flexion and medial rotation, rather than abduction or lateral rotation.

These muscles are the primary hip adductors, meaning they pull the thigh toward the midline. Their fibers run in a way that, when they contract, they not only bring the leg inward but also assist with moving the hip in a forward direction and rotating the thigh inward when the hip is flexed. The adductor longus and brevis lie more toward the front, so they contribute to flexion of the hip as they adduct, while the magnus has parts that both flex (adductor part) and extend (hamstring part) the thigh. Overall, their common action is adduction of the hip with additional flexion and medial rotation, rather than abduction or lateral rotation.