- May 2, 2026The flexor pollicis brevis has the unusual distinction of dual innervation, with the superficial head supplied by the median nerve…
- May 2, 2026The opponens digiti minimi is the deepest hypothenar muscle, inserting along the entire fifth metacarpal shaft and rotating it medially…
- May 2, 2026The abductor digiti minimi is the most medial hypothenar muscle, forming the visible ulnar border of the hand and abducting…
- May 2, 2026The flexor digiti minimi brevis is the central hypothenar muscle, flexing the little finger at the MCP joint and assisting…
- May 2, 2026The four dorsal interossei are bipennate muscles filling the four metacarpal spaces on the dorsal hand, producing finger abduction (spreading…
- May 2, 2026The three palmar interossei are unipennate muscles adducting the index, ring, and little fingers toward the middle finger (there is…
- May 2, 2026The four lumbricals are unique muscles that originate from tendons (the FDP tendons) rather than bone and insert into the…
- May 2, 2026The adductor pollicis is the deepest thenar muscle and the primary provider of key pinch force, generating the powerful adduction…
- May 2, 2026The abductor pollicis brevis is the most superficial thenar muscle, forming the rounded prominence of the lateral thenar eminence and…
- May 2, 2026The opponens pollicis is the deepest thenar muscle and the one most responsible for the medial rotation component of thumb…