Question

and identify the joint motion (including the joint name) and prime movers involved in the following activities:

1. Keeping the fingers straight, spread them wide apart; bring them together.
2. With your forearm supinated and the thumb next to the radial side of the index finger, raise the thumb straight up from the palm.
3. Touch the tip of your thumb to the tip of the little finger.
4. Keep the fingers straight and bend at the knuckles.
5. Starting with the thumb next to the radial side of the index finger, move it across the palm toward the little finger.

Answer 1