Answer:
The 2 joints that make up the knee are tibiofemoral joint (where the tibia meets the femur) and the patellofemoral joint (where the patella meets the femur). The primary knee muscles during the squat are the Quadriceps group – they work concentrically during knee extension and eccentrically during knee flexion.
Not sure check on yahoo answers
Answer:
i think is 12 to 19 sorry if im not right
Answer:
I think it's all of them.
