Now that we’ve looked at the bones, joints and pulleys of the hand, we’re almost ready to see the muscles. Before we do that, let's review what we’ve seen so far.
Here are the carpal bones, the metacarpals, the proximal phalanges, middle phalanges, and distal phalanges; the carpometacarpal joints, the MP joints of the fingers, the proximal IP joints, the distal IP joints. On the thumb, the MP joint, and the IP joint.
Here's the flexor retinaculum, and the side tunnel for the ulnar nerve, the extensor retinaculum, the flexor tendon sheath, the palmar plate, the collateral ligaments of the MP joint, the extensor mechanism, and the palmar aponeurosis.