The extensor digitorum participates in wrist extension only when the fingers are simultaneously extended.

Question

Quizplus · Accepted Answer

The extensor digitorum muscle is primarily responsible for extending the fingers, but it also contributes to wrist extension. However, it only participates in wrist extension when the fingers are extended at the same time. If the fingers are flexed, the extensor digitorum will not contribute to wrist extension.

The Extensor Digitorum Participates in Wrist Extension Only When the Fingers