Palm of the Hand (Thenar and Hypothenar), Carpal Tunnel, Anatomical Snuffbox
adductor pollicis action
adducts the thumb
adductor pollicis attachment
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dorsal interosseous muscles attachment
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palmar interosseous muscles attachment
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dorsal interosseous muscles action
DAB abduct the digits
palmar interosseous muscles action
PAD adduct digits
hypothenar muscles
abductor digiti minimi flexor digiti minimi brevis opponens digiti minimi
thenar muscles
abductor pollicis brevis flexor pollicis brevis opponens pollicis all innervated by the median nerve
anatomical snuffbox boundaries
abductor pollicis longus tendon (anterior) extensor pollicis brevis tendon (anterior) extensor pollicis longus tendon (posterior)
abductor digiti minimi action
abducts digit 5
abductor pollicis brevis action
abducts thumb
deep palmar muscles
adductor pollicis palmar interosseous muscles dorsal interosseous muscles
flexor reniticulum
anterior border of the carpal tunnel
adductor pollicis vascular supply
deep palmar arterial arch (from radial artery)
anatomical snuffbox
depression on the posterior surface of the wrist
ulnar artery
divides into the superficial branch and the deep branch superficial branch forms the superficial palmar arch
common palmar digital artery
divides into two proper palmar digital arteries
dorsal interosseous muscles vascular supply
dorsal and palmar metacarpal arteries
palmaris brevis action
draws the skin of the ulnar side of the hand toward the center of the palm
flexor digiti minimi brevis action
flexes digit 5
flexor pollicis brevis action
flexes the carpometacarpal and metacarpophalangeal joints of the thumb
superficial branch of the ulnar nerve
innervates digit 5 and the medial side of digit 4
recurrent branch of the median nerve
innervates the three thenar muscles innervates lumbrical muscles 1&2
palmaris brevis attachment
medial aspect of the palmar aponeurosis (proximal) skin over the hypothenar eminence (distal)
carpal tunnel
median nerve four tendons of the flexor digitorum superficialis four tendons of the flexor digitorum profundus tendon of the flexor pollicis longus
opponens digiti minimi action
opposes digit 5
opponens pollicis action
opposes the thumb
palmar interosseous muscles vascular supply
palmar metacarpal artery
flexor digitorum profundus
passes through the flexor digitorum superficialis attaches to the distal phalanx (digits 2-5)
opponens digiti minimi attachment
pisiform/himate/flexor retinaculum (proximal) medial border of the 5th metacarpal bone
abductor digiti minimi attachment
pisiform/himate/flexor retinaculum (proximal) medial side of the base of the proximal phalanx of digit 5
flexor digiti minimi brevis attachment
pisiform/himate/flexor retinaculum (proximal) medial side of the base of the proximal phalanx of digit 5
abductor pollicis brevis innervation
recurrent branch of the median nerve
flexor pollicis brevis innervation
recurrent branch of the median nerve
opponens pollicis innervation
recurrent branch of the median nerve
abductor pollicis brevis attachment
scaphoid/trapezium/flexor retinaculum (proximal) lateral side of the proximal phalanx of the thumb
flexor pollicis brevis attachment
scaphoid/trapezium/flexor retinaculum (proximal) lateral side of the proximal phalanx of the thumb
opponens pollicis attachment
scaphoid/trapezium/flexor retinaculum (proximal) lateral side of the shaft of the first metacarpal bone
flexor digitorum superficialis
splits and attaches to the middle phalanx of the digit (digits 2-5)
innervation of wrist
study page 460 in atlas
palmaris brevis innervation
superficial branch of the ulnar nerve
abductor pollicis brevis vascular supply
superficial palmar branch of the radial artery
flexor pollicis brevis vascular supply
superficial palmar branch of the radial artery
opponens pollicis vascular supply
superficial palmar branch of the radial artery
abductor digiti minimi vascular supply
ulnar artery
flexor digiti minimi brevis vascular supply
ulnar artery
opponens digiti minimi vascular supply
ulnar artery
palmaris brevis vascular supply
ulnar artery
abductor digiti minimi innervation
ulnar nerve (deep branch)
adductor pollicis innervation
ulnar nerve (deep branch)
dorsal interosseous muscles innervation
ulnar nerve (deep branch)
flexor digiti minimi brevis innervation
ulnar nerve (deep branch)
opponens digiti minimi innervation
ulnar nerve (deep branch)
palmar interosseous muscles innervation
ulnar nerve (deep branch)
opponens pollicis
underneath the flexor pollicis brevis and abductor pollicis brevis
