NEET PG DENTAL EXAM

Detailed explanation-1: -The primary action of the extensor digitorum longus is to extend the lateral four toes at metatarsophalangeal joint. This means that when acting independently, it is unable to extend the entire length of the toes, extending only at metatarsophalangeal, while at the interphalangeal joints the toes remain flexed.

Detailed explanation-2: -Primarily, the extensor digitorum communis extends medial four digits at the metacarpophalangeal joints and secondarily at the interphalangeal joints. It also acts to extend the wrist joint.