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MSK Test 1 > Upper Extremity Arthrology > Flashcards

Upper Extremity Arthrology Flashcards

1
Q

Sternoclavicular joint 2 bones

A
  • clavicular notch of manubrium

- sternal facet on sternal end of clavicle

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2
Q

Sternoclavicular joint type of joint

A
  • sellar (saddle) synovial joint
  • biaxial, false circumduction w/o rotation
  • articular capsule
  • articular disc
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3
Q

Sternoclavicular joint ligaments

A

Costoclavicular L
Ant/post sternoclavicular L
Interclavicular L

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4
Q

Acromioclavicular joint 2 bones

A
  • acromio facet on acromial end of clavicle

- facet on the acromion of the scapula

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5
Q

Acromioclavicular joint type of joint

A
  • planar synovial
  • uniaxial gliding and sliding
  • articular capsule (fibrous capsule, synovial membrane)
  • articular disc
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6
Q

Acromioclavicular joint ligaments

A

1) acromioclavicular L
2) coracoclavicular
A) trapezoid L
B) conoid tubercle L(medial)

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7
Q

Shoulder seperation

A

Acromioclavicular joint is susceptible to injury and separation
-is capable of separation w/ or w/o rupture of coracoclavicular L

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8
Q

Glenohumeral Joint 2 bones

A

Glenoid cavity of scapular head

-head of humerus

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9
Q

Glenohumeral Joint type of joint

A
  • spheroidal synovial (ball and socket)

- multiaxial

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10
Q

Glenohumeral Joint bursa

A

A) subscapular bursa
- between subscapularis T and scapular neck
-communicates with synovial membrane
B) subacromial bursa
-between deltoid M and supraspinatus T and artciular capsule
-DOES NOT usually communicate with synovial membrane

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11
Q

Glenohumeral Joint ligaments

A
  • glenohumeral L
  • coracohumeral L
  • transverse humeral L (between intertubercular groove on humerus, encapsulates long head of biceps brachii T)
  • coracoarcomial arch (acromion, coracoacromial L, coracoid process)
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12
Q

What prevents superior displacement of humerus from glenoid cavity?

A

Coracoacromial arch

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13
Q

Why is glenohumeral joint susceptible to dislocation?

A

-because of mobility and relative instability

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14
Q

Which direction does dislocation of glenohumeral joint commonly occur?

A
  • anteriorly or inferiorly

- due to presence of carcoacromial arch

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15
Q

What does a posterior dislocation of the elbow usually tear?

A

Ulnar collateral L

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16
Q

“Students elbow”/ “dart throwers elbow”/“miners elbow”

A

Inflammation of subcutaneous olecranon bursa from excessive friction between skin and olecranon
-bicipitoradial bursa can also become inflamed

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17
Q

Nursemaid’s or pulled elbow

A
  • dislocation of radial head from the annular L.

- from pulling arm of child

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18
Q

Proximal radioulnar joint: type

A 
Trochoid synovial (pivot, uniaxial)
-pronation and supination
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19
Q

middle radioulnar joint type

A

Syndesmosis (fibrous)

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20
Q

Distal radioulnar joint type

A

Trochoid synovial (pivot, uniaxial)

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21
Q

Radiocarpal (wrist joint) bones

A
  • distal end of radius
  • articular disc of radioulnar joint
  • scaphoid
  • lunate
  • triquetrum
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22
Q

Radiocarpal joint type

A

-condylar synovial (biaxial)

23
Q

Radiocarpal joint: ligaments

A

1) palmar radiocarpal L (2 bands)
2) dorsal radiocarpal L
3) Palmar ulnocarpal L (2 bands)
4) dorsal ulnocarpal L
5) radial collateral L of wrist
6) ulnar collateral L of wrist

24
Q

Intercarpal joints type

A

Planar synovial (uniaxial)

25
Q

What are the intercarpal joints?

A
  • scapholunate
  • lunotriquetrum
  • pisotriquetrum
  • pisohamate
  • trapeziotrapezoid
  • capitiohamate
  • trapeziocapitate
26
Q

]]]]]]]]]]

Midcarpal joint bones

A

Proximal and distal rows of carpal bones

27
Q

Midcarpal joint type

A

Sellar synovial joint (saddle)

28
Q

Carpometacarpal joints (1st) type and bones

A
  • sellar synovial (saddle)

- from trapezium to 1st metacarpal bone

29
Q

Carpometacarpal joints (2nd-5th) type and bones

A
  • planar synovial joint

- distal crape row to 2nd-5th metacarpal B

30
Q

Carpometacarpal joints (1st) ligaments

A

1) palmar carpometacarpal L

2) dorsal carpometacarpal L

31
Q

Carpometacarpal joints (2nd-5th) ligaments

A

1) palmar carpometacarpal L
2) dorsal carpometacarpal L
3) pisometacarpal L (5th metacarpal in junction)
4) pisometacarpal
5) radiate carpal L

32
Q

Intermetacarpal joints (type)

A

-planar synovial

33
Q

Intermetacarpal joint (ligaments)

A

1) dorsal intermetacarpal L
2) palmar intermetacarpal L
3) interosseous intermetacarpal L

34
Q

Metacarpophalangeal joint type

A

Condylar synovial (biaxial)

35
Q

Metacarpophalangeal joint ligaments

A

1) palmar L
2) medial collateral L
3) lateral collateral L
4) deep transverse metacarpal L

36
Q

Bull riders thumb

A

Sprain of lateral collateral L and even avulsion of lateral part of proximal phalanx of thumb

37
Q

Skier’s or gamekeeper’s thumb

A

Laxity or rupture of both collateral ligaments of 1st metacarpophalangeal joints
-hyperabduction of that joint

38
Q

Ist interphalangeal joint (thumb) type

A

-ginglymus synovial joint (hinge, uniaxial)

39
Q

Ist interphalangeal joint (thumb) ligaments

A

1) palmar L
2) medial collateral L
3) lateral collateral L

40
Q

Proximal interphalangeal joints (4) type

A
  • ginglymus synovial joint

- between 2nd-5th proximal and intermediate phalanges

41
Q

Proximal interphalangeal joints (4) ligaments

A

1) palmar L
2) medial collateral L
3) lateral collateral L

42
Q

Distal interphalangeal joint type

A
  • ginglymus synovial joint

- between 2nd-5th intermediate distal phalanges

43
Q

Distal interphalangeal joint ligaments

A

1) palmar L
2) medial collateral L
3) lateral collateral L

44
Q

Mallet finger or baseball finger

A

Sudden hyperflexion of distal interphalangeal joint can avulse the attachment of long extensor tendon with that tendon away from distal phalanx

45
Q

Movements of scapula

A
  • elevation and depression of scapula
  • protraction and retraction of scapula
  • rotating the glenoid cavity up and down
46
Q

Glenohumeral movements

A
  • extension (posteriorly) and flexion (anteriorly) of arm
  • hyperextension (posterior to anatomical position) of arm
  • abduction and adduction of arm
  • medial and lateral rotation
47
Q

Elbow movements

A

-flexion (anteriorly) and extension (posteriorly) of forearm

48
Q

Radioulnar movements

A
  • pronation

- supination

49
Q

Wrist movements

A
  • extension (posteriorly) and flexion (anteriorly) of hand
  • ulnar flexion (medial movement)
  • radial flexion (lateral movement)
50
Q

Digits 2-5 movements

A
  • extension (posteriorly) and flexion (anteriorly)
  • abduction (movement away from middle finger)
  • adduction (movement toward middle finger)
  • 3rd finger can be abducted medially or laterally but cant be adducted
51
Q

Thumb movements

A
  • extension (lateral movement from anatomical position)
  • flexion (sweeping thumb across palmar surface)
  • abduction (anterior movement from anatomical position)
  • adduction (posterior movement from abducted position)
  • opposition (touching thumb to 5th digit)
  • reposition (returning thumb from opposed position)
52
Q

Synovial or ganglion cyst

A

Irritation of synovial sheaths can cause an accumulation of mucopolysaccharide fluid that can form a usually painless lump
-infections of synovial sheath can cause swelling in a very specific and characteristic configuration that follow shape of these sheaths

53
Q

Dupuytren contracture

A

Shortening, thickening and fibrosis of palmar aponeurosis and palmar fascia.
-results in partial flexion of 4th and 5th digits

MSK Test 1 (10 decks)

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