palm of hand Flashcards
palmar aponeruosis
distal attachment of palmaris longs
covers central compartment of hand
palmaris longus attachments
medial epicondyle of humorous
inserts into palmar aponeurosis
palmaris longus innervation
median nerve c7-8
palmaris longus actions
tighten palmar aponeurosis at wrist
weakly flex arm at elbow
thenar emminience
what is it madeof
-what do these look like
muscular swelling at base of thumb
flexor policis brevis-most medial-mostly under flexor pollicis brevis
abductor policis brevis-fattest,most superior, 2nd most medial
opponens pollicis-inferior to abductor pollicis longus and most lateral
hypothenar eminence
muscular swlling at base of pinky
abductor digiti minimi-most medial
flexor digititi minimi previs-more lateral to abductor digiti minmi
palmaris brevis-largest-more superficial than other two
Ulnar nerve and artery
position to each other
where do they pass
nerve is medial to artery
pass lateral to pisiform bone
superficial palmar arterial arch
distal branch of ulnar artery
terminal division of ulnar nerve
deep -motor
suerficial-sensory
whats under flexor retinaculum
-what happens if you continue on path
carpal tunnel
9 tendons and median nerve
median nerve becomes recurrent branch when enters thenar muscles
FDS tendon and FDP tendon releationship
FDS splits and attaches to sides of second phalanx to allow FDP tendon to reach distal phalanx
flexor digitorum superficialis attachments
humorous head-medial epicondyle
ulnar head-coronoid process
both-insert into sides of middle phalanges of 2nd to 5th digits
flexor digitorum superficialis innervation
median nerve c8-t1
flexor digitorum superficialis actions
flex hand at wrist
flex 2nd to 5th digits at MCP and PIP joints
weakly flex forarm at elbow
flexor digitorum profundus attachments
two thirds of flexor surface of ulna and from interosseous membrane
inserts into palmar surface of distal phalanges of 2nd to 5th digits
flexor digitorum profundus innervtion
median nerve and ulnar nerve
both c8-t1
flexor digitorum profundus actions
flex hand at wrist
flex 2nd to 5th digits at MCP, PIP, and DIP joints
lumbricals attachments
1st-radial side of tendon of flexor digitorum proudness
-goes to dorsal digital expansion of 2nd digit
2nd originates from radial side of tendon of flexor digitoum profudus
-inerts into dorsal digital expansion of 3rd digit
3rd lumbrical-possiblly two heads that originate from medial and lateral sides of tendon of flexor digitorum profudus
-inserts onto dorsal ditigal expansion of 4th digit
4th-possbily two heads from medial and lateral sides of tendon of flexor digitorum proudness
-inserts onto dorsal digital expansion of 5th digit
lumbricals innervation
1st/2nd-median nerve c8-t1
3rd/4th-ulnar nerve c8-t1
lumbricals actions
flex 2nd to 5th digits at MCP joints
extend 2nd to 5th digits at PIP and DIP joints
abductor pollicis brevis attachemnts/where is it
in thenar comparment
originates from scaphoid and trapezium bones and from flexor retinaculum
inserts into base of proximal phanlax of thumb via radial sesamoid
abductor pollicis brevis innervation
median nerve c8-t1
abductor pollicis brevis action
abduct thumb at CMC joint
flexor pollicis brevis where is it/attachments
thenar comparment
deep head-capatiate and trapezium bones of wrist
superficial head-flexor retinaculum
both insert into base of proximal phalanx via radial seasamod
flexor pollicis brevis innervation
median nerve c8-t1
fleor pollicis brevis actions
flex thumb at CMC joint
opponens policies where is it/attachments
thenar comparment
trapezium bone of wrist
radial border of 1st metacarpal
opponens policis innervation
median nerve c8-t1
opponens pollicis actions
opponse thumb at CMC joint
abductor digiti minimi attachemtns/where is it
hypothenar
from pisiform bone of wrist
inseert ot ulnar base of proximal phalanx of 5h digit and onto dorsal digital expaion of 5th digit
abductor digiti minimi innervation
ulnar nerve c8-t1
abductor digiti minimi actions
flex and abduct pinky at MCP joint
extend pinky at PIP and DIP joints
flexor digit minimi bravis attachemtns/where is it
hypothenar
hook of hamate and flexor retinaculum
inserts into base of proximal phalanx of the 5th digit
flexor digit minimi bravis innervation
ulnar nerve c8-t1
flexor digit minimi bravis actions
flex little finger at MCP joint
Opponens digiti minimi attachemtns/where is it
hypothenar
hook of hamate and flexor retinaculum
ulnar borer of 5th metacarpal
Opponens digiti minimi innervation
ulnar nerve c8-t1
Opponens digiti minimi actions
draw pinky to palmar direction
what is in webspace between thumb and index finger
adductor pollicis muscle
first dorsal interosseous muscle
