Chapter 7, Problem 8RQ

Which of the following muscle groups is the antagonist for quadriceps? rectus femoris pectoralis major trapezius hamstrings

Which of the following is NOT a facial muscle?   depressor labii inferioris orbicularis oris sternocleidomastoid zygomaticus major

You would use this muscle to help you cross your legs. (Hint: sitting on the floor in a yoga posture—the lostus position—involves this muscle, too).This muscle group acts primarily on the knee; involved with extension at the knee.This muscle would help abduct the thigh (move the thigh away from the midline of the body).