Force applied laterally to the ____ can injure the ulnar collateral ligament (UCL), which leads to instability of the metacarpophalangeal (MCP) joint.

Question

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The ulnar collateral ligament (UCL) is located in the thumb and provides stability to the metacarpophalangeal (MCP) joint. Lateral force applied to the thumb can lead to injury of this ligament, resulting in instability of the joint.

Force Applied Laterally to the ____ Can Injure the Ulnar