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MBChB221 Musculoskeletal > Shoulder + Elbow > Flashcards

Shoulder + Elbow Flashcards

1
Q

Shoulder Joint Type

A

Synovial ball and socket

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2
Q

Shoulder Ball

A

Humeral head

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3
Q

Shoulder Socket

A

Glenoid Fossa

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4
Q

Glenoid Labrum Role

A

Softens and slightly deepens the shoulder socket

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5
Q

Glenoid labrum is an extension of what standard part of a synovial joint

A

Articular cariltage

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6
Q

Sacciform bulges is an extension of what standard part of a synovial joint

A

Synovial membrane

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7
Q

Bursae is an extension of what standard part of a synovial joint

A

Synovial Fluid

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8
Q

When is the shoulder capsule the tightest

A

Arm abducted

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9
Q

Extracapsular Shoulder Ligament

A

Coracoacromial

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10
Q

Capsular Shoulder Ligaments

A

Coracohumeral, transverse humeral, glenohumeral

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11
Q

Coracoacromial Ligament Forms _____ arch

A

Superior (therefore prevents superior dislocation)

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12
Q

Coracohumeral ligament reinforces _______ allowing you to passively _______

A

Superiorly, hang your arm

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13
Q

Transverse Humeral ligament spans

A

Greater tubercle to lesser tubercle

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14
Q

Transverse humeral ligament role

A

Holds biceps in place

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15
Q

Glenohumeral ligaments are # ____ thickenings on the _______ aspect of the shoulder

A

3 weak, inferior-anterior

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16
Q

Most common shoulder dislocation

A

Anterior-inferior

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17
Q

Why shoulder superior dislocation uncommon

A

Coracoacromial and coracohumeral lig

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18
Q

Why posterior shoulder dislocation uncommon

A

Muscles (if muscles immobilised eg epilepsy, electric shock then common)

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19
Q

Shoulder bursae

A
  1. Subscapular
  2. Subacromial / subdeltoid
20
Q

Subscapularis nerve

A

Upper and lower subscapular nerves

21
Q

Subscapularis origin

A

Subscapular fossa

22
Q

Subscapularis insertion

A

Lesser tubercle

23
Q

Subscapularis movement

A

Internal rotation

24
Q

Supraspinatus nerve

A

Suprascapular nerve

25
Q

Supraspinatus origin

A

Supraspinous fossa

26
Q

Supraspinatus insertion

A

Superior facet of greater tubercle

27
Q

Supraspinatus movemnent

A

Abduction

28
Q

Infraspinatus nerve

A

Suprascapular

29
Q

Infraspinatus origin

A

Infraspinous fossa

30
Q

Infraspinatus insertion

A

Middle facet greater tubercle

31
Q

Teres minor nerve

A

Axillary

32
Q

Teres minor origin

A

Lateral scapula

33
Q

Teres minor insertion

A

Inferior facet greater tubercle

34
Q

Teres minor movement

A

External rotation

35
Q

Rotator cuff main job

A

Active stabilisation of the shoulder = burn energy

36
Q

Three joints of the elbow

A
  1. Humero-ulnar
  2. Humero-radial
  3. Superior radio-ulnar
37
Q

Which two elbow joints allow Flexion/extension

A

Humero-ulnar and humeral-radial

38
Q

Which two elbow joints allow pronation/supination

A

Humero-radial and superior radio-ulnar

39
Q

Humero-ulnar joint three parts

A
  1. Trochlea (humerus) into trochlear notch (ulna)
  2. Olecranon (ulna) into olecranon fossa (post hum)
  3. Coronoid process (ulna) into coronoid fossa (ant hum)
40
Q

Humero-radial one part

A

Radius head articulates to humerus capitulum

41
Q

Superior radio-ulnar one part

A

Radial head into ulna’s radial notch

42
Q

Ligaments of elbow joint

A
  1. Ulnar collateral ligament
  2. Radial collateral ligament
  3. Annular ligament
43
Q

Ulnar collateral ligament role

A

Prevents elbow abduction

44
Q

Radial collateral ligament role

A

Prevents elbow Adduction

45
Q

Annular ligament role

A

Allows radius to spin during pro/sup

46
Q

Fat Pads elbow role

A

Fill up fossa when bone processes aren’t in them, reducing amount of synovial fluid needed

47
Q

Fat pads elbow radiology

A

If pushed away from the fossa indicates excess fluid buildup (eg internal bleeding, infection)

MBChB221 Musculoskeletal (26 decks)

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