Anatomy - Extensor digiti minimi muscle

Extensor digiti minimi - Insertion

Base of the middle and distal phalanxes of the fifth phalange (dorsal surface)

Extensor digiti minimi - Action

Extension of the little finger at the metacarpophalangeal joint, Weak wrist extension, Weak elbow extension

Extensor digiti minimi - Origin

Lateral epicondyle of the humerus

Extensor digiti minimi - Innervation

Radial nerve (C6-C8)