Question

which is true at the knee when a standing patient lowers their gluteal muscles towards the floor?
a) femur rolls anterior as it slides anterior
b) femur rolls posterior as it slides anterior
c) femur rolls anterior as the tibia rolls posterior
d) femur rolls posterior as the tibia slides posterior

Explanation:

When a standing patient lowers their gluteal muscles towards the floor (knee - flexion), the femur rolls posteriorly as it slides anteriorly on the tibia to maintain contact and allow for smooth movement at the knee joint. This is due to the anatomy and mechanics of the knee, where the femoral condyles roll and slide on the tibial plateau.

Answer:

b) Femur rolls posterior as it slides anterior