Wrist & Hand Flashcards

1
Q

How many bones in the wrist and hand

A

27

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2
Q

How many bones in the wrist

A

8

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3
Q

Bones in the distal end of the wrist

A

Hamate
Capitate
Trapezoid
Trapezium

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4
Q

Bones at the proximal end of the wrist

A

Scaphoid
Lunate
Triquetrum
Pisiform

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5
Q

Distal wrist bones articulate with

A

Carpometacarpal

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6
Q

Proximal wrist bones articulate with

A

the ends of the radius and ulna

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7
Q

Joint type: wrist

A

synovial ellipsoid (4 movements0

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8
Q

Movements of the wrist

A

Flexion
Extension
Abduction (radial deviation)
Adduction (ulnar deviation)

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9
Q

Muscles: Wrist flexors

A

Flexor carpi ULNARIS (pisiform & 5th)
Flexor carpi RADIALIS (2nd & 3rd)
Palmaris Longus (absent in 15%)

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10
Q

Muscles: Wrist extensors

A

Extensor carpi ULNARIS
Extensor carpi RADIALIS LONGUS
Extensor carpi RADIALIS BREVIS

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11
Q

Muscles: Radial deviation (abduction)

A

Flexor carpi radialis
Extensor carpi radialis longus
Extensor carpi radialis brevis

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12
Q

Muscles: Ulna deviation (adduction)

A

Flexor carpi ulnaris

Extensor carpi ulnaris

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13
Q

Muscles that cause the hand to move can be located out with the boney hand structure

A

extrinsic muscles

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14
Q

muscles that are actually located within the hand structure

A

Intrinsic muscles

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15
Q

Bones of the hand

A

Metacarpals (palm) x 5
Proximal phalanges x 5
Middle phalanges (not thumb) x4
Distal phalanges (tips) x 5

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16
Q

Movements of thumb

A
Abduction
Adduction
Extension
Flexion
Opposition
Reposition
17
Q

Joint at carpals (wrist) and metacarpals

A

carpometacarpal (CMC)

18
Q

Joint metacarpals and proximal phalanges (KNUCKLES)

A

metacarpophalangeal (MCP)

Condyloid joint

19
Q

Joint proximal phalanges and middle phalanges

A
proximal interphalangeal (PIP) 
Hinge joint
20
Q

Joint end of fingers

A
Distal interphalangeal (DIPS)
Hinge joint
21
Q

Thumb joint with metacarpal trapezium

A

saddle joint

22
Q

Muscles OPPOSITION thumb and little finger

A
Opponens pollicis (thumb) 
opponens digiti minimi (little finger)
23
Q

Muscles bend thumb

A

Flexor pollicis longus (thumb)

Flexor pollicis brevis (thumb)

24
Q

Muscles: Flexion of HAND

A

Flexor digitorum profundus (DIP, PIP, MCP)
Flexor digitorum superficialis (PIP, MCP)
Flexor pollicis longus (thumb)
Flexor pollicis brevis (thumb)
Flexor digiti minimi brevis (little finger)
Lumbricals and interossei (MCP)

25
Q

Muscles: Extension of hand

A
Extensor Digitorum (fingers)
Extensors indicis (fingers)
Extensor digiti minimi (MCP, PIP, DIP)
Extensor pollicis longus (thumb)
Extensor pollicis brevis (thumb)
26
Q

Muscles: Abduction of HAND

A

Dorsal Interossei (fingers),
Abductor digiti minimi (little finger),
Abductors pollicis longus (thumb)
Abductor pollicis brevis (thumb)

27
Q

Muscles: Adduction of HAND

A
Palmar Interossei (fingers),
Adductor pollicis (thumb)
28
Q

Carpal tunnel formed by

A
distal carpal bones 
flexor retinaculum (Firm ligament)
29
Q

Tendons that pass through the carpal tunnel

A

Flexor digitorum profundus (DIP, PIP, MCP)

Flexor digitorum superficialis (PIP, MCP)

30
Q

Ball grip

A

Circular knobs, Balls, tops of mugs, jars

Fingers and thumb adduct onto the object

31
Q

Hook/snap grip

A

Carrying suitcase, bucket shopping bag

Only flexed finger involved, not thumb

32
Q

Cylinder grip

A

Holding racket, jug, handbrake of car

Palmer surface and finger around the handle, thumb in opposition

33
Q

Power grips

A

Ball
Hook
Cylinder

34
Q

Precision grips

A

Plate
Palmer pinch
Lateral/key
Pincer grip

35
Q

Plate grip

A

Holding a plate or something that needs to be horizontal

36
Q

Pinch grip

A

Used to hold and manipulate small tools e.g. sewing needle, small screwdriver

37
Q

Key / lateral grip

A

holding a key

38
Q

pincer grip/tip to tip grip

A

beads or pins