Thenar eminence Flashcards
Flexor pollicis brevis origin
Flexor retinaculum and tubercle of trapezium
flexor pollicis brevis insertion
lateral sides of base of proximal phalanx of thumb
Flexor pollicis brevis action
flexes proximal phalanx of thumb
Flexor pollicis brevis innervation
Median nerve (recurrent branch)
Flexor pollicis brevis blood supply
superficial palmar branch of radial artery
Abductor pollicis brevis origin
Flexor retinaculum, tubercles of scaphoid and trapezium
Abductor pollicis insertion
Lateral side of base of proximal phalanx of thumb
Abductor pollicis brevis action
Abducts thumb
Abductor pollicis brevis innervation
Median nerve (recurrent branch)
Abductor pollicis brevis blood supply
Superficial palmar branch of radial artery
Opponens pollicis origin
Flexor retinaculum and tubercle of trapezium
Opponens pollicis insertion
lateral side of 1st metacarpal
Opponens pollicis action
draws 1st metacarpal forward and rotates it medially
Opponens pollicis innervation
Median nerve (recurrent branch)
Opponens pollicis blood supply
Superficial palmar branch of radial artery