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Donny Rad Positioning 1 > Upper Limbs General > Flashcards

Upper Limbs General Flashcards

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1
Q

How many bones consist in the hand and wrist combined?

A

27

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2
Q

What are the phalanges? How many bones?

A

(fingers and thumb)
14 bones

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3
Q

What are the metacarpals? How many bones?

A

(palm)
5 bones

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4
Q

What are the carpals? How many bones?

A

(Wrist)
8 bones

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5
Q

Fingers and thumbs are called?

A

Digits
Each digit consists of small bones called phalanges

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6
Q

What are the 3 parts of the phalanges called?

A

Proximal (bottom of finger, closest to palm)
Middle (middle of finger duh)
Distal (tip of finger)

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7
Q

Where is the first metacarpal located? Where is the last one located?

A

First: Thumb
Last (fifth): Pinky
Metacarpals
1-5 metacarpals

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8
Q

What are the 3 parts of the metacarpal called?

A

Base (closest to the wrist)
Body (middle portion)
Head (the top, closest to the phalanges aka fingers)

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9
Q

How many phalanges does the thumb have? What is this joint called ?

A

2 phalanges
Interphalangeal (IP) joint

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10
Q

Joint name between the first metacarpal and the proximal phalanx of the thumb

A

First metacarpophalangeal (MCP) joint
(Name derives from the two bones that make up this joint)

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11
Q

Name of joint between distal and middle portion of the digit?

A

Distal interphalangeal (DIP) joint

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12
Q

Name of joint between middle and proximal portion of the digit?

A

Proximal interphalangeal (PIP) joint

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13
Q

Name of joint between proximal and wrist?

A

metacarpophalangeal (MCP) joint

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14
Q

The wrist is broken up into two rows:

A

Distal row (closest to fingers)
Proximal row (closest to forearm)

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15
Q

How many carpals consist in each row?

A

Distal: 4
Proximal: 4

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16
Q

What are the 4 carpals in the distal row of the wrist?

A

1 trapezium
2 trapezoid
3 capitate
4 Hamate

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17
Q

What are the 4 parts of the proximal row?

A

1 scaphoid
2 Lunate
3 Triquetrum
4 Pisiform

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18
Q

What is the Lateral side of the hand?
What is the medial side?

A

Lateral side = thumb (1st)
Medial side = Pinky (5th)

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19
Q

What is the first carpal in the proximal row?
what is its shape?

A

scaphoid bone
boat shaped
largest bone in proximal row
articulates with the radius proximally

20
Q

What is the second carpal in the proximal row? What is its shape?

A

Lunate (moon shaped)
articulates with the radius

21
Q

What is the third carpal in the proximal row? What is its shape?

A

Triquetrum (tri-kwe-trum)
three articular surfaces
distinguished by its pyramid shape

22
Q

What is the fourth carpal in the proximal row? What is its shape?

A

pisiform
pea shaped
smallest of the carpal bones
anterior to the triquetrum
most evident in the carpal canal/ tangential projection

23
Q

Distal row articulates with…

A

the five metacarpals (fingers)

24
Q

First carpal (lateral) in the distal row?

A

trapezium
four-sided, irregularly shaped
located medial and distal to the scaphoid and proximal to the first metacarpal (finger)

25
Q

Second carpal in the distal row?

A

trapezoid
four-sided
smallest bone in the distal row

26
Q

Third carpal in the distal row?

A

Capitate
largest in distal row

27
Q

Fourth (last) carpal in the distal row?

A

Hamate
distinguished by its hook-like process called hamulus

28
Q

Where is the radius located?

A

apart of the forearm
lateral (thumb) side

29
Q

Where is the Ulnar located?

A

part of the forearm, medial side

30
Q

What is styloid processes?

A

small conical projections
located at extreme distal ends of both radius and ulna

31
Q

What do the ulna and radius articulate with?
(what joint)

A

articulate with each other at the proximal radioulnar joint and the distal radioulnar joint
(joints allow for rotational movement of wrist and hand)

32
Q

Joint responsible for rotational movement of wrist and hand?

A

proximal radioulnar joint & distal radioulnar joint

33
Q

what is the ulnar notch?

A

small depression on the medial aspect of the distal radius
the head of ulna fits into the ulnar notch to form the distal radioulnar joint.

34
Q

head of ulna

A

located near the wrist (distal end)
when hand is pronated, head of ulna and styloid process are easily felt/seen

35
Q

head of the radius

A

located near the elbow (proximal end)

36
Q

long midportion of both the radius and the ulna are called…

A

the body (shaft)

37
Q

(t/f) the radius is the shorter bone (of the two) that is directly involved with the wrist joint

A

true
(during pronation the radius rotates around the more stationary… ulna)

38
Q

radial tuberosity

A

rough oval process on the medial and anterior side of the radius, distal to the neck

39
Q

ulna is the ___ bone
Radius is the _____ bone

A

longer, stationary (ulna)
Shorter, rotates (radius)

40
Q

what is primarily responsible for the formation of the elbow joint?

A

Ulna

41
Q

olecranon/coronoid processes

A

beak-like process of the proximal ulna
olecranon can be easily palpated on the posterior aspect

42
Q

coronoid tubercle

A

medial margin of the coronoid process that is lateral to the radial notch of the

43
Q

trochlear

A

large concave depression that articulates with distal humerus

44
Q

radial notch

A

small/shallow depression on the lateral aspect of the proximal ulna

45
Q

humeral condyle

A

expanded distal end of the humerus

46
Q
A

Donny Rad Positioning 1 (9 decks)

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