Which is true about the Cartesian coordinate system?
A. It is a special reference system used by biomechanists.
B. It can be used to describe two-dimensional or three-dimensional motion.
C. both A and B
D. none of the above
During the preparatory phase for an underhand softball pitch, the hand holding the ball is drawn behind the body prior to the forward swing of the arm. When the hand is drawn behind the body, which of the following movements occurs at the shoulder?
A. flexion
B. extension
C. hyperextension
D. circumduction
A. the hip is distal to the knee
B. the shoulder is superior to the hip
C. superficial muscles are closer to the skin than deep muscles
D. the triceps are posterior to the biceps