human) head. face is used when referring to physical features: a pretty face with high cheekbones. countenance, a more formal word, denotes the face as it is affected by or reveals a person's state of mind; hence, it often signifies the look or expression on the face: a thoughtful countenance.
Muscles Around the Knee. 1  Quadriceps femoris musclesâa large muscle group on the front of the thigh. 2  Vastus lateralisâpart of the quadriceps femoris on the outside-front of the thigh, it extends or straightens the leg and is controlled by the femoral nerve. Vastus lateralisâpart of the quadriceps femoris on the outside-front of the thigh, it extends or straightens the leg and is controlled by the femoral nerve. 2  Vastus intermediusâpart of the quadriceps femoris on the center-front of the thigh, it extends or straightens the leg and is controlled by the femoral nerve.
Two important ligaments in the knee, the ACL and posterior cruciate ligament (PCL), connect the femur or thigh bone with the tibia, one of the bones of the lower leg.here are four ligaments in the knee that are prone to injury: 1  Mentioned above, the anterior cruciate ligament (ACL) is one of the two major ligaments in the knee. 2  It connects the thigh bone to the shin bone in the knee.