Which of the following is true regarding neurovasculature of the lower extremity?

You are at a concert and you are tapping your foot to the beat of the music. Which is the primary muscle you are using to raise your distal foot off the ground, decreasing the angle between my dorsal foot and anterior shin? 

Which of the following is true regarding neurovasculature of the lower extremity?

Compared to the shoulder (glenohumeral) joint, the hip (coxal) joint:

Which of the following is true about the bones of the upper extremity?

Which of the following is true about the bones of the upper extremity?

Which of the following is true regarding the lower extremity?

A patient arrives at your clinic with knee pain after incurring a blow to the anterior tibia during a soccer game. You perform a test that involves applying pressure to the anterior proximal tibia and attempting to move the tibia posteriorly on the femur. What ligament of the knee are you testing? 

A patient was sitting with her right leg crossed over the left, putting pressure on the proximal portion of the lateral (lower) leg, near her fibular head, for a long period of time. She felt part of her leg go “numb.” The next day she reported to your clinic with complaints of difficulty walking and her foot feeling odd. Upon examination, you find that she has greatly diminished sensation on both the dorsal and lateral aspects of her right foot. She is also extremely week with both dorsiflexion and eversion. Which nerve has been damaged?

Which is correct regarding the pelvis?