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MS 1 > Bones and Joints of the Upper Extremity > Flashcards

Bones and Joints of the Upper Extremity Flashcards

1
Q

What are the bones of the upper extremity?

A

humerus
radius
ulna

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2
Q

1/2 sphere, proximal end that articulates with the glenoid fossa to form GH joint is called what?

A

Head of the humerus

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3
Q

What are the fossae of the humerus?

A

radial
coronoid
olecranon
sulcus for ulnar nerve

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4
Q

What does the head of the radius articulate with?

A

The capitulum of the humerus

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5
Q

What fossa does the head of the radius fit into and where is it?

A

Radial fossa on anterior humerus

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6
Q

Where is the neck of the radius?

A

immediately distal to the head

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7
Q

Where is the radial/bicipital tuberosity?

A

distal to neck, anterior medial side in anatomical position.

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8
Q

Where is the pronator tubercle?

A

middle lateral surface of the radius

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9
Q

Where is Lister’s (dorsal) tubercle?

A

Posterior middle surface of distal radius

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10
Q

What are the grooves of the radius?

A

lateral to dorsal tubercle
medial to dorsal tubercle

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11
Q

What are the borders of the radius?

A

anterior
posterior
interosseus

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12
Q

Where is the radial styloid process?

A

distal lateral aspect

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13
Q

What forms the bony elbow?

A

olecranon process

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14
Q

What does the olecranon process articulate with?

A

olecranon fossa of the humerus

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15
Q

What is the anterior aspect of the olecranon?

A

trochlear notch

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16
Q

What does the trochlear notch articulate with?

A

trochlea of the humerus

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17
Q

What is the anterior inferior aspect of the trochlear notch?

A

coronoid process

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18
Q

What does the coronoid process articulate with?

A

coronoid fossa

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19
Q

What does the radial notch of ulna articulate with?

A

radial head

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20
Q

Where is the ulnar tuberosity?

A

on anterior surface of the ulna

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21
Q

What are the borders of the ulna?

A

anterior
posterior
interosseus

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22
Q

Where is the head of the ulna?

A

distal end

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23
Q

What does the distal end of the ulna articulate with?

A

articular cartilage

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24
Q

What are the bones of the carpals?

A

scaphoid
lunate
triquetrum
pisiform
trapezium
trapezoid
capitate
hamate

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25
Which carpals articulate with the distal radius?
scaphoid lunate
26
What are the articulating surfaces of the radiohumeral joint?
concave surface of radial head and capitulum of humerus
27
What are the articulating surfaces of the ulnohumeral joint?
trochlear notch of the ulna and trochlea of the humerus
28
What movements are permitted by the ulnohumeral and radiohumeral joints? What axis and plane?
flex/ex medial lateral axis sagittal plane
29
What are the ligaments of the radiohumeral and ulnohumeral joints?
capsule medial/ulnar collateral lateral/radial collateral
30
What is the shape of the medial/ulnar collateral ligament?
triangular shaped
31
what does the medial/ulnar collateral ligament limit?
valgus motion
32
What is the shape of the lateral/radial collateral ligament?
fan shaped
33
What does the medial/ulnar collateral ligament attach?
attaches medial humeral epicondyle to coronoid and olecranon process
34
What does the lateral/radial collateral ligament attach?
attaches lateral humeral epicondyle to annular ligament of proximal radioulnar joint
35
What motion does the lateral/radial collateral ligament limit?
varus motion
36
What is the classification of the radiohumeral and ulnohumeral joint?
uniaxial hinge synovial joint
37
What nerves innervate the radiohumeral and ulnohumeral joints?
musculotaneous radial ulnar
38
What are the articulating surfaces of the proximal radioulnar joint?
edge of radial head radial notch of ulna
39
How much of the radial head articulates with the ulna at any one time?
1/5
40
What is the classification of the proximal radioulnar joint?
uniaxial pivot synovial joint
41
What are the movements of the proximal radioulnar joint (with axis and plane)?
supination and pronation mechanical axis no plane
42
What are the ligaments of the proximal radioulnar joint?
capsule annular ligament oblique cord
43
What nerves innervate the proximal radioulnar joint?
musculocutaneous radial ulnar
44
What are the bursae of the elbow?
olecranon bursae (subtendonous and subcutaneous)
45
What are the fat pads of the elbow?
anterior and posterior fatpads
46
47
What are the articulating surfaces of the middle radio ulnar joint?
Interosseus border of the radius and ulna
48
What is the classification of the middle radio ulnar joint?
Fibrous syndesmosis, amphiarthrodial joint
49
What movements are permitted by the middle radioulnar joint?
Supination/pronation
50
What are the ligaments of the middle raioulnar joint?
Interosseus membrane
51
What movement does the interosseus membrane limit?
Supination and pronation
52
What are the articulating surfaces of the distal radioulnar joint?
Head of ulnar Ulnar notch of radius
53
What is the classification of the distal radioulnar joint?
Uniaxial pivot synovial joint
54
What are the movements permitted by the distal radioulnar joint?
Supination - pronation
55
What are the ligaments of the distal radioulnar joint?
Capsule Ant. and post. radioulnar lig Triradiate cartilage/disc
56
What movement does the ant./post. radioulnar ligament limit?
Anterior limits supination. Posterior limits pronation
57
What movement does the triradiate cartilage/disc limit?
Cushions impact between between carpals and radius and ulna.
58
What nerves innervate the distal radioulnar joint?
Anterior (median) and posterior (radial) interosseus nerves.
59
What are the articulating surfaces of the radiocarpal joint?
Distal radius and tricolor cartilage (concave) Proximal row of carpal- scaphoid, lunate (and triqutrum in extreme ulnar deviation. (Convex)
60
What is the classification of the radiocarpal joint?
Biaxial condyloid synovial joint
61
What are the movements of the radiocarpal joint?
Flex/ex: med/lat. axis; sag. plane Radial/ulnar deviation: Ant/post axis; frontal plane

MS 1 (9 decks)

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