What action occurs with the extensor hood when the extensor digitorum muscle contracts?
A) Hood moves proximally over metacarpophalangeal (MCP) joint, extends proximal phalanx
B) Hood moves distally over interphalangeal (IP) joint, extends distal phalanx
C) Hood moves proximally over MCP joint, extends distal phalanx
D) Hood isometrically contracts, extends proximal interphalangeal, IP, and distal phalanx
Correct Answer:
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