🔬general biology i review

key term - Opposition

Citation:

Definition

Opposition is the movement that brings the thumb and fingers together, enabling grasping and manipulation of objects. It is a key function of the hand, involving coordinated actions of muscles, bones, and joints.

5 Must Know Facts For Your Next Test

  1. Opposition primarily involves the thumb touching the tips of the other fingers.
  2. The saddle joint at the base of the thumb (carpometacarpal joint) plays a crucial role in opposition.
  3. Muscles such as the opponens pollicis are critical for executing opposition movements.
  4. Opposition is essential for fine motor skills and dexterity in humans.
  5. Injuries or conditions affecting opposition can significantly impair hand function and grip strength.

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