Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

kinesiology > wrist/ hand > Flashcards

wrist/ hand Flashcards

1
Q

wrist joint (4)

A
  1. compound/ complex (radial/ ulnar disc)
    2 components:
  2. radiocarpal- distal end of R/RU disc articulating with proximal row of carpals (except pisiform)
  3. midcarpal
  4. biaxial: flext/extend (x) 80-90’/ 70-80’ radial/ ulnar deviation (z) 25’/35’
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

movement analysis: fully flexed -> extension (3)

A
  1. midcarpal- full flexed -> neutral
  2. distal carpals (plus scaphoid):neutral -> 45’ they are moving on proximal row and distal radius
  3. radiocarpal- 45’ -> full extension
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

ulnar deviation analysis of movement (and plane) (3)

A 
1. scaphoid movement (saggital plane)   
    extends 
carpals movement (frontal):  
2. distal row -> ulnarly  
3. proximal row -> radialy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

wrist ligaments (8)

A

dorsal:
1. radiolunate
2. radiotriquietrium
these two only stabilize RC joint
palmar:
3. radiotriquietrium
4. radiocapitate
5. ulnocapitate
these three stabilize Mid carpal and RC joint
6. ulnolunatecollateral
7. radiocollateral (to scaphoid)
8. ulnarcollateral (triquetrium, pisiform, 5th MC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

primary wrist flexors (7)

A
  1. FCR
  2. FCU
  3. plamaris longus
    (all are shunt muscles for elbow)
  4. FDP
  5. FDS
  6. FPL
  7. AbPL
    these 4 are extrinsic finger flexors
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

primary wrist extensors (7)

A
  1. ECRL
  2. ECRB
  3. ECU
    shunt muscles for elbow
  4. ED
  5. EI (extensor indicies)
  6. EDM
  7. EPL
    these 4 are extrinsic finger extensors
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

primary radial deviators (7)

A
  1. EPL
  2. EPB
  3. AbPL
  4. FPL
  5. FCR
  6. ECRB
  7. ECRL
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

primary ulnar deviators (3)

A
  1. FCU
  2. ECU
  3. EDM
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CMC joints and functional movement(4)

A
  1. distal carpals with MC- all work on corresponding MC #
  2. function of MC is to orientate hand around object (cupping and uncupping)
  3. function of MC 1 is opposition
  4. 1st (thumb) is most mobile, then #5, 4 and 2/3 are not very mobile
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CMC 2nd -> 5th cupping muscles (4)

A

cupping = flexion

  1. FCU
  2. FCR
  3. FDP
  4. FDS
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

CMC 2nd -> 5th uncupping muscles (4)

A

uncupping = extension

  1. ECU
  2. ECRB
  3. ED
  4. ECRL
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

MCP joint (type of movement and ROM) (6)

A
  1. knuckles
  2. proximal phalanges (concave) move on 3. convex heads of MC ==> translatory and rotary movement is in the same direction
  3. 2nd -> 5th MCP joint- biaxial
    flexion/ ab/duction with third finger as reference point for ab/duction
    normal ROM
  4. flex/ extend 90-110’/ 45-60’
  5. ab/duction 20’
  6. 1st MCP = hinge (uniaxial)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

PIP and DIPs (type of movement and ROM) (5)

A 
1. uniaxial (hinge)
ROM - PIP
 2. 100-130' (digit 5 moves less than digit 2)
3. concave moving on convex 
ROM - DIP
 4. flex/extend 80-90'/ 10'
5. thumb: flex/ extend 80/10'
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

hand flexor muscles (digits 2-5) (4)

A

extrinsic- forearm flexors
1. FDP- MCP flexor/ IP extensor (inn ulnar and median nerve)
intrinsic:
2. 4 lumbricals (don’t attach to bone)
3. 4 dorsal interossei (abduct in neutral wrist)
4. 3 palmar interossei (adduct in neutral wrist)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

hand extensor muscles (digits 2-5) (3)

A 
extrinsic:
 1. extensor digitorum (codependent with lumbricals and interossei 
intrinsic:
 2. lumbricals
 3. interossei (flexors and extensors)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

thumb movements at CMC joint(7)

(Types of joint, movement and axis)

A
  1. CMC biaxial (+) joint
  2. saddle joint
    movements:
  3. in anatomical position flexion = bringing thumb into palm (z axis)
    1. this is concave 1st MC moving on convex trapezium
  4. ab/duction is movement around x axis
  5. this is convex 1st MC moving on concave trapezium
  6. axial rotation- movement into and out of palm
17
Q

thumb MCP joint (type and ROM) (2)

A
  1. hinge
    normal ROM
  2. flex/ extend 70’/45’
18
Q

thumb IP normal ROM

A
  1. flex/ extend 80’/10’
19
Q

intrinsic thumb muscles (4)

A
  1. flexor pollicis brevis
  2. abductor policis brevis
  3. adductor policis
  4. opponens
20
Q

hypothenar muscles (3)

A
  1. AbDM
  2. FDM
  3. OppDM
21
Q

prehension

22
Q

power grasp (5)

A
  1. stabilizing something with hand or stabilized into palm
  2. this uses extrinsic finger muscles
  3. cylindrical- drinking- thumb adducted (addp) and extrinsic muscles
  4. spherical (holding round object ie ball) - abduction at CMC => FDP, FDS
  5. hook/ snap (carry suit case)- FDP, FDS (thumb not used)
23
Q

precision handling (5)

A
  1. holding objects between tips or pads of fingers
  2. intrinsic finger muscles
  3. tip- most amt of DIP/PIP precision
  4. pad to side/ lateral using a key
  5. 2 (or 3) jaw chuck- holding a pen
24
Q

synergies of extensor digitorium and lumbricals (2 synergies)

A
  1. prevent MCP flexion when using long finger flexors

2. IP extension

25
Q

synergies of snuff box and hypothenar muscles

A

FCU and ECU coutneract radial deviation of extrinsic thumb muscles

26
Q

Synergies of wrist extensors and long finger flexors

A

Wrist extensors stabilize wrist during finger flexion

kinesiology (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions