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musculo > Joints > Flashcards

Joints Flashcards

1
Q

articular surfaces of the elbow joint

A

capitulum and trochlea of the humerus
- head of the radius (articulates with the capitulum of humerus)
trochlear notch of ulna (articulates with the trochlea of the humerus)

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2
Q

ligaments involved in the elbow joint:

A

the fibrous capsule is weak anteriorly and posteriorly but thickened laterally to form: -
- lateral (radial) collateral ligament
medial (ulnar) collateral ligament, which consists of 3 bands: anterior, posterior and oblique)

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3
Q

elbow joint - type?

A

synovial hinge

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4
Q

movements of the elbow joint

A

flexion/extension

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5
Q

articular surfaces of proximal radioulnar joint

A
  • Head of radius
  • Radial notch of the ulna
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6
Q

ligament involved in prox. radioulnar j

A

Anular ligament (continuation of fibrous capsule of the elbow joint)

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7
Q

proximal radioulnar joint - type

A

synovial pivot

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8
Q

proximal radioulnar joint - movements

A

pronation/supination

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9
Q

articular surfaces of sternoclavicular j

A

the sternal end of the clavicle and clavicular notch of the manubrium sterni and a small part of the costal cartilage of the first rib

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10
Q

ligaments involved in sternoclavicular j

A
  • anterior and posterior sternoclavicular ligaments
  • Interclavicular ligament
    costoclavicular ligament
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11
Q

sternoclavicular j - type

A

synovial saddle - but functions as a ball and socket

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12
Q

acromioclavicular j articular surfaces

A

Found at acromial end of clavicle and at the acromion of the scapula

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13
Q

acromioclavicular j ligaments

A

superior acromioclavicular ligament

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14
Q

acromioclavicular j type

A

plane

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15
Q

acromioclavicular j action

A

gliding movement

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16
Q

what is the most weak part of glenohumeral j

A

inferior

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17
Q

articular surfaces of glenohumeral j

A
  • Glenoid cavity on the scapula deepened by the glenoid labrium
    Head of humerus
18
Q

ligaments involved in glenohumeral j

A
  • Intrinsic ligaments of the shoulder joint are formed as a thickening of the joint fibrous capsule and support the shoulder joint:
  • coracohumeral ligament
  • glenohumeral ligament anteriorly with three fibrous bends: superior, middle and inferior
  • transverse humeral ligament which keeps long head of biceps muscle in the bicipital groove
    Extrinsic ligament coracoacromial together with the smooth inferior surface of the acromion and coracoid process form the osseoligamentous arch that overlies the head of the humeru
19
Q

type of joint - glenohumeral

A

ball + socket

20
Q

movements of glenohumeral j

A
  • Range of movements is great while stability of the joint is weak and compromised on account of mobility
  • Abduction
  • Adduction
  • Flexion
  • Extension
  • Circumduction
  • Medial rotation
    Lateral rotation
21
Q

distal radioulnar articular surfaces

A

head of ulna, ulnar notch of distal radius

22
Q

distal radioulnar joint type

A

pivot

23
Q

movemnet of distal radioulnar j

A

pronation/supination

24
Q

articular surfaces of elbow j

A

captiulum and trochlea of humerus, head of radius, trochlear notch of ulna

25
Q

ligaments involved in elbow j

A

lateral (radial) collateral lig, medial (ulnar) collateral

26
Q

elbow j type

A

synovial hinge

27
Q

elbow j movements

A

flexion/extension

28
Q

prox radioulnar j articular surfaces

A

head of radius, radial notch of ulnar

29
Q

ligament involved in prox radioulnar j

A

annular lig

30
Q

prox. radioulnar j type

A

synovial pivot

31
Q

prox. radioulnar j movements

A

pronation/supination

32
Q

wrist j articular surfaces

A
  • Distal radius articulates with the scaphoid and lunate carpal bones, while ulna does not contribute to the wrist joint and it has artiular disc separating it from the carpal bones
33
Q

wrist j ligaments

A

igaments are thickening of the fibrous capsule:
- anterior – palmar radiocarpal ligament
- posterior – dorsal radiocarpal ligament
- ulnar and radial collateral ligaments

34
Q

wrist j type

A

synovial condyloid

35
Q

wrist j action

A

Flexion, extension, abduction, adduction and circumduction

36
Q

intercarpal j type

A

synovial plane

37
Q

intercarpal j action

A

Small amount of gliding movement

Involved in extension and abduction of the hand, facilitate movements at the radiocarpal joint

38
Q

carpometacarpal j articular surfaces

A

Thumb: trapezium and base of the 1st metacarpal bone

39
Q

Carpometacarpal j ligaments

A

Anterior and posterior carpometacarpal ligaments and interosseous ligaments

40
Q

carpometacarpal j type

A

Synovial plane

Thumb: saddle synovial = wide range of movement

41
Q

carpometacarpal j action

A

Gliding movements of the medial 4 metacarpal bones. Movements increase medially

42
Q
A

musculo (3 decks)

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