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MSK1 > UE Arthrology > Flashcards

UE Arthrology Flashcards

1
Q

What type of joint and what 2 bones articulate in the Sternoclavicular joint?

A

Sellar synovial joint

Clavicular notch of manubrium and the sternal fact of the clavicle articulate

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2
Q

What ligaments are involved in the sternoclavicular joint?

A

Articular capsule, articular disc, costoclavicular L., Anterior and posterior sternoclavicular L., Interclavicular L.

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3
Q

What does the costoclavicular L. attach?

A

The inferior surface of the clavicle to the 1st rib

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4
Q

What type of joint and what 2 bones articulate in the Acromioclavicular joint?

A

Planar synovial joint

Acromial facet on clavicle and the fact on acromion of scapula

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5
Q

What ligaments are involved in the acromioclavicular joint?

A

Acromioclavicular L. and the coracoclavicular L.

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6
Q

What 2 ligaments make up the coracoclavicular L?

A

Trapezoid L. and Conoid L.

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7
Q

Falling where weight shoots vertically up through the elbow to brachium will do what to the acromioclavicular joint?

A

It can dislocate the joint but will not rupture the coracoclavicular L.

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8
Q

Falling where weight falls directly on to the shoulder can do what to the acromioclavicular joint?

A

It can dislocate AND rupture the coracoclavicular ligament

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9
Q

What type of joint and what is involved in the glenohumeral joint?

A

BALL AND SOCKET (spheroidal synovial)

Cavity of scapular head that is deepened by the glenoid labrum

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10
Q

What bursae are involved in the glenohumeral joint?

A

Subscapular and subacromial

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11
Q

Most important thing in the glenohumeral joint?

A

Coracoacromial arch that prevents superior displacement of humerus – coracoacromial L.

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12
Q

What type of joint and what is involved in the elbow joint?

A

Hinge type synovial

Humeral condyle, trochlear notch of ulna and head of radius

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13
Q

What are the main ligaments in the elbow joint?

A

Ulnar collateral L. of the elbow and the radial collateral L. of the elbow

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14
Q

What are the 3 bands of the Ulnar collateral L of the elbow?

A

Anterior, posterior and oblique

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15
Q

What is needed to posteriorly dislocate the elbow?

A

A tear in the ulnar collateral L.

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16
Q

What is a dart thrower’s elbow?

A

Subcutaneous olecranon bursitis due to excessive friction between skin and olecranon

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17
Q

How many radioulnar joints are there?

A

3

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18
Q

What is pulled elbow?

A

Radial head is dislocated out of annular L

Usually occurs from pulling on a child’s arm

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19
Q

What articulates in the radiocarpal joint?

A

Disteal end of radius and the proximal row of carpals (scaphoid, lunate and triquetrum)

20
Q

What movements does the radiocarpal joint allow?

A

Flexion, extension, aBduction and aDduction

21
Q

What are some ligaments in the radiocarpal joint?

A

Palmar/dorsal radiocarpal, palmar/dorsal ulnocarpal, radial collateral L. of the wrist and the ulnar collateral L. of the wrist

22
Q

What articulates in the carpometacarpal joints?

A

Distal row of carpals and metacarpals (5)

23
Q

Describe the 1st carpometacarpal joint

A

Between trapezium and the 1st metacarpal; sellar synovial joint

24
Q

Describe the 2nd through 5th carpometacarpal joints

A

Between distal row of carpals and 2-5th metacarpals;

planar synovial joint

25
Q

Carpometacarpal ligaments?

A

Palmar and dorsal carpometacarpal ligaments, pisometacarpal L.

26
Q

Describe Intermetacarpal joint

A

Between metacarpals, planar synovial, palmar and dorsal intermetacarpal L.

27
Q

What articulates and what type of joints are the metacarpophalangeal joints?

A

Between metacarpals and proximal phalanges;

Condylar synovial joints

28
Q

What are the important ligaments in the metacarpophalangeal joints and how do you distinguish them?

A

Palmar, medial collateral and lateral collateral, deep transverse metacarpal L.
The side closest to the thumb will house the lateral collateral ligament of the metacarpophalangeal joint

29
Q

What is unique about the medial and lateral collateral ligaments of the metacarpophalangeal joints?

A

Both contain a cord shaped part (runs proximal to distal) and a fan shaped part (travels anteriorly to insert on the palmar L.)

30
Q

Bull rider’s thumb

A

Sprain of the lateral collateral L. of the 1st metacarpophalangeal joint

31
Q

Skier’s or Game-keeper’s thumb

A

Laxity or rupture of both the medial and lateral collateral ligaments of the 1st metacarphophalangeal joint

32
Q

What action does Skier’s or Game-keeper’s thumb result in?

A

Hyper ABduction of the thumb at that joint

33
Q

Where is the 1st interphalangeal joint?

A

Thumb

34
Q

Describe the proximal interphalangeal joints

A

Located on the 2nd - 5th digits; numbered starting at the 2nd digit, 1-4!!

35
Q

Describe the distal interphalangeal joints

A

Located on the 2nd - 5th digits; numbered starting at the 2nd digit, 2-5!

36
Q

What do all interphalangeal joints have?

A

Palmar ligament anteriorly, medial and lateral collateral ligaments

37
Q

Mallet “baseball” finger

A

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

38
Q

What are the movements of the scapula?

A

elevation, depression, protraction, retraction, rotation

39
Q

What are the movements of the glenohumeral joint?

A

extension, flexion, hyperextension, abduction, adduction, medial and lateral rotation

40
Q

What are the movements of the elbow?

A

Flexion and extension

41
Q

What are the movements of the radioulnar joint?

A

pronation and supination

42
Q

What are the movements of the wrist?

A

flexion, extension, ulnar flexion (ADduction), radial flexion (ABduction)

43
Q

What are the movements of the phalanges?

A

Flexion, extension, ABduction away from 3rd finger midline and ADduction toward the 3rd finger midline

44
Q

Synovial “ganglion” cyst

A

Irritation of synovial sheaths causing accumulation of fluid

45
Q

Dupuytren contracture

A

Shortening, thickening, fibrosis of palamar aponeurosis resulting partial flexion of 4th and 5th digits

MSK1 (29 decks)

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