UL Origins, Insertions, and Innervations 3 Flashcards
Flexor pollicis longus - Origin
Anterior surface of radius, interosseous membrane
Flexor pollicis longus - Insertion
Palmar surface of distal phalanx of thumb
Flexor pollicis longus - Innervation
Median nerve
Flexor pollicis brevis - Origin
Flexor retinaculum, tubercle of trapezium, trapezoid, capitate
Flexor pollicis brevis - Insertion
Lateral aspect of base of proximal phalanx
Flexor pollicis brevis - Innervation
Recurrent branch of median nerve
Deep branch of ulnar nerve
Extensor pollicis longus - Origin
Middle third of ulna, interosseous membrane
Extensor pollicis longus - Insertion
Posterior aspect of base of distal phalanx of thumb
Extensor pollicis longus - Innervation
Posterior interosseous nerve
Extensor pollicis brevis - Origin
Posterior surface of distal third of radius, interosseous membrane
Extensor pollicis brevis - Insertion
Posterior aspect of base of proximal phalanx
Extensor pollicis brevis - Innervation
Posterior interosseous nerve
Abductor pollicis longus - Origin
Posterior surface of proximal half of radius, ulna, interosseous membrane
Abductor pollicis longus - Insertion
Base of 1st MCP
Abductor pollicis longus - Innervation
Posterior interosseous nerve