Hand Muscle Structure. The muscle structure of the hand is intentionally complex and intimate considering the vast variations of movements and the remarkable fine motor movements that the hand is responsible for initiating and completing. Most of the muscles that move the hand and wrist are in the forearm although there are a few small muscles in the hand.
There are three groups thenar and hypothenar interossei and lumbrical muscles. The muscle structure of the hand is intentionally complex and intimate considering the vast variations of movements and the remarkable fine motor movements that the hand is responsible for initiating and completing. This is the bottom of the body of the hand.
Extrinsic and intrinsic muscles.
On the one hand smooth muscle cells contract slower than skeletal muscle cells on the other hand they are stronger more sustained and require less energy. Muscles acting on the hand can be divided into two groups. The abductor digiti minimi the flexor digiti minimi and the opponens digiti minimi. The abductor allows the small finger to pull away from the ring finger.
