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The extensor mechanism is an elaboration of the extensor digitorum communis (EDC) tendon on the dorsum of each phalanx. The extensor indicis (EI) and the extensor digit minimi (EDM) insert into the extensor mechanisms of the second and fifth digits, respectively.
Extensor mechanism, also known as:
- Digital dorsal mechanism/hood
- Extensor expansion
- Extensor assembly
- Extensor apparatus
- Dorsal aponeurosis
- Aponeurotic sleeve
