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34 Cards in this Set

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4 compartments of anterior hand?
thenar, hypothenar, adductor interosseous, central compartment
3 types of muscles in thenar and hypothenar?
flexor, ABductor, opponens
origin of thenar compartment muscles?
lateral end of flexor retinaculum
3 muscles of thenar compartment & their insertions?
1) abductor pollicis brevis
I: lateral side of base of proximal phalanx

2) opponens pollicis
I: shaft of first metacarpal

3) flexor pollicis brevis
I: lateral side of base of proximal phalanx
innervation of thenar compartment?
recurrent branch of median nerve
vascular supply of thenar compartment?
superficial palmar branch of radial artery
3 muscles of hypothenar compartment and their insertion?
1) abductor digiti minimi
I: medial side of proximal phalanx

2) opponens digit minimi
I: medial side of 5th metacarpal

3) flexor digit minimi
I: medial side of proximal phalanx
origin of hypothenar compartment muscles?
medial end of flexor retinaculum
innervation of hypothenar compartment?
deep branch of ulnar nerve
blood supply of hypothenar compartment?
superficial & deep branches of ulnar artery
5 components of central compartment?
1) flexor tendons with their synovial sheath
2) 4 lumbrical muscles
3) superficial palamar arch (from ulnar artery)
4) digital and muscular branches of superficial palmar arch
5) ulnar/median nerves
Origin of lumbrical muscles?
tendons of flexor digitorium profundus
Insertion of lumbrical muscles?
radial side of extensor muscles
innervation of lumbrical muscles?
medial 2 - ulnar nerve
lateral 2- median nerve
action of lumbrical muscles?
flex the metacarpophalangeal joints and extend the interphalangeal
components of the adductor interosseous compartment?
adductor pollicis
three palmar interosseous
4 dorsal interosseous
origin/insertion/innervation of adductor pollicis?
O: 2-4 metacarpels & capitate
I: medial side of first phalanx of thumb
Inn: deep ulnar nerve
Innervation fo adductor-interosseous compartments?
deep branch of ulnar nerve
what does deep branch of ulnar nerve innervate?
hypothenar & adductor-interosseous compartments
function of palmar interosseous muscles?
Adduction
function of dorsal interosseous muscles?
ABduction
origin of palmar interosseous muscles?
metacarpal bone
insertion of palmar interosseous?
base of proximal phalanx/extensor tendon
origin of dorsal interosseous?
adjacent metacarpal bones (bi-pennate);
comes from 2 metacarpal bones
insertion of dorsal interosseous?
base of proximal phalanx and extensor tendon
what is ulnar bursa?
snyovial sheath for 8 tendons (superificialis/profundi) flexors
continues into palm for pinky, but stops at finger for other 3
radial bursa?
snyovial sheath or tendon of flexor pollicis longus muscle; from carpels to distal phalanx
clefts in palm?
midpalmar & thenar clefts separated by oblique septum
artery to thumb?
princeps pollicis artery
artery to lateral side of index finger?
radialis indicis artery
branches of superficial palmar arch?
3 common palmar digital arteries;
each one divides into 2 proper palmar digital arteries (at web space)
branches of median nerve & what they innervate?
palmar cutaneous - given off in forearm
recurrent muscular - motor nerve to muscles in thenar compartment
common & proper palmar digital nerves - sensory to lateral 3.5 digits and motor to lateral 2 lumbrical digits
function of superficial palmar branch of ulnar nerve?
sensory to medial 1.5 fingers
function of deep palmar branch of ulnar nerve?
hypothenar compartment
adductor-interosseous compartment
medial 2 lumbricals