PAS 407, hand UPDATED ACTUAL Questions and CORRECT Answers
scaphoid
lunate
Proximal row of bones include
triquetrum
pisiform
trapezoid
trapezium
distal row of bones include
capitate
hamate
distal surface (concave portion) with radius
Scaphoid articulates with what?
proximal surface (convex) with 4 other bones
lunate articulates with what? concave surface of scaphoid
lunate laterally
triquetrum articulates with what, during ulnar deviation? hamate distally
pisiform anteriorly
pisiform articulates with what? Triquetrum posteriorly
what are metacarpals? bones associated with distal aspects of hands
long bones
-base of bones situated proximally
what classification are metacarpals -irregular articular surface
-form gliding joints with CARPAL bones
-1st metacarpal is an exception
forms: knuckles when making a fist
metacarpal heads distally form/fxn as what
fxn: normal finger motion
Phalanges make up what? and classified as what kind of fingers
bones? long bones
each digit has how many phalanges? 3 but thumb has 2
what movements can phalanges perform? flexion, extension, abduction, adduction
interphalangeal joint movements are? ONLY flexion, extension
, during radial deviation what happens? greater contact b/w RADIUS & SCAPHOID
during ulnar deviation what happens? greater contact b/w triquetrum & articulating disc
Intracapsular ligaments
radiocarpal joints contain what ligaments? 1. radial collateral ligaments
2. ulnar collateral ligaments
can: flexion, extension, abduction, adduction
what movements can take place with the radiocarpal
joints? what CANT?
cant: rotation
planar (gliding) joints
carpometacarpal joints are what kind of joints? ROM is limited
no rotation allowed
what is thumb opposition? ability for tip of thumb to touch tip of other fingers
movements of wrist flexion, extension, ulnar dev., radial dev.,
flexor muscles
- Flexor carpi radialis
- Flexor carpi ulnaris
contraction of what muscle group produces flexion? - Flexor digitorum profundus
- Flexor digitorum superficialis
- Flexor pollicis longus
- Palmaris longus
extensor muscles
- Extensor carpi radialis brevis
contraction of what muscles produce extension? - Extensor carpi ulnaris
- Extensor digiti minimi
- Extensor digitorum
ulnar deviation (adduction) results from combo of what? flexor & extensor CARPI ULNARIS
radial deviation (abduction) results from combo of what? flexor & extensor CARPI RADIALIS
what separates proximal & distal row of carpal bones? midcarpal joint
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scaphoid
lunate
Proximal row of bones include
triquetrum
pisiform
trapezoid
trapezium
distal row of bones include
capitate
hamate
distal surface (concave portion) with radius
Scaphoid articulates with what?
proximal surface (convex) with 4 other bones
lunate articulates with what? concave surface of scaphoid
lunate laterally
triquetrum articulates with what, during ulnar deviation? hamate distally
pisiform anteriorly
pisiform articulates with what? Triquetrum posteriorly
what are metacarpals? bones associated with distal aspects of hands
long bones
-base of bones situated proximally
what classification are metacarpals -irregular articular surface
-form gliding joints with CARPAL bones
-1st metacarpal is an exception
forms: knuckles when making a fist
metacarpal heads distally form/fxn as what
fxn: normal finger motion
Phalanges make up what? and classified as what kind of fingers
bones? long bones
each digit has how many phalanges? 3 but thumb has 2
what movements can phalanges perform? flexion, extension, abduction, adduction
interphalangeal joint movements are? ONLY flexion, extension
, during radial deviation what happens? greater contact b/w RADIUS & SCAPHOID
during ulnar deviation what happens? greater contact b/w triquetrum & articulating disc
Intracapsular ligaments
radiocarpal joints contain what ligaments? 1. radial collateral ligaments
2. ulnar collateral ligaments
can: flexion, extension, abduction, adduction
what movements can take place with the radiocarpal
joints? what CANT?
cant: rotation
planar (gliding) joints
carpometacarpal joints are what kind of joints? ROM is limited
no rotation allowed
what is thumb opposition? ability for tip of thumb to touch tip of other fingers
movements of wrist flexion, extension, ulnar dev., radial dev.,
flexor muscles
- Flexor carpi radialis
- Flexor carpi ulnaris
contraction of what muscle group produces flexion? - Flexor digitorum profundus
- Flexor digitorum superficialis
- Flexor pollicis longus
- Palmaris longus
extensor muscles
- Extensor carpi radialis brevis
contraction of what muscles produce extension? - Extensor carpi ulnaris
- Extensor digiti minimi
- Extensor digitorum
ulnar deviation (adduction) results from combo of what? flexor & extensor CARPI ULNARIS
radial deviation (abduction) results from combo of what? flexor & extensor CARPI RADIALIS
what separates proximal & distal row of carpal bones? midcarpal joint
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