Which of the following muscle is not inseed into the dorsal digital expansion of ring finger ?
The dorsal digital expansion (extensor expansion) is a small triangular aponeurosis (related to each tendon of the extensor digitorum) covering the dorsum of the proximal phalanx. Its base, which is proximal, covers the metacarpophalangeal (MP)joint. The main tendon of the extensor digitorum occupies the central pa of the extension, and is separated from the MP joint by a bursa The muscles inseed into the dorsal digital expansions of Ring finger: Fouh dorsal interosseous, third palmar interosseous, third lumbrical and extensor digitorum slip. REF - BDC 6th e p135
Fouh dorsal interossei
Third palmar interossei
Fouh lumbricals
Extensor digitorum
Upper limb