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PHTY3120 Upper Limb > 3120 Anatomy (W3 Exam) > Flashcards

3120 Anatomy (W3 Exam) Flashcards

1
Q

Glenohumeral joint open pack position

A

40-55’ abduction, 30’ horizontal adduction (scapular plane)

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2
Q

Scapulothoracic joint articulation

A

Interface between scapula and post-lateral surface of thorax

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3
Q

Sternoclavicular joint articulation

A

Medial clavicle, manubrium, and cartilage of 1st rib

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4
Q

Sternoclavicular open and closed pack positions

A

OPEN pack: Arm resting by side
CLOSED pack: full arm elevation

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5
Q

Acromioclavicular joint articulation

A

Acromion process and lateral clavicle

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6
Q

Acromioclavicular joint open and closed pack positions

A

OPEN pack: arm resting by side
CLOSED pack: 90’ arm abduction

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7
Q

What is scapulohumeral rhythm?

A

Scapulohumeral rhythm is the special order of movement synchronisation of the scapula, humerus, and clavicle during full shoulder elevation.

Synchronised contribution from scapula and humerus (2:1) after the initial 60’. Initial 60’ is predominantly done by the GHJ.

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8
Q

Glenohumeral joint passive stability

A

Glenoid orientation,
Glenoid labrum (fibrocartilage that deepens the glenoid cavity by 50%)
Surface tension
Joint capsule and associated ligaments (coracohumeral ligament + superior, middle, inferior glenohumeral ligaments)

Rotator interval - acts as anterior superior hammock, restricts ER and inferior translation.

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9
Q

Glenohumeral joint dynamicstability

A

Rotator cuff muscles
Long head of biceps

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10
Q

Sternoclavicular joint passive stability

A

Ant and post sternoclavicular ligaments

Interclavicular ligament

Costoclavicular ligament

Articular disc between manubrium
and medial clavicle

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11
Q

Sternoclavicular joint dynamic stability

A

SCM
Sternohyoid muscle
Sternothyroid muscle
Subclavius

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12
Q

Acromioclavicular joint passive stability

A

Acromioclavicular ligament

Coracoclavicular ligaments (trapezoid and conoid)

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13
Q

Acromioclavicular joint active stability

A

Deltoid and upper trapezius

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13
Q

Scapula upward rotator muscles

A

Upper trap (UR, elevation and retraction)
Middle trap (UR, retraction)
Lower trap (UR, depression and retraction)

Serratus anterior (UR and protraction

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14
Q

Scapula downward rotator muscles

A

Levator scapulae
Rhomboids

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15
Q

Shoulder flexion muscles

A

Anterior deltoid
Coracobrachialis
long head of biceps

16
Q

Shoulder abduction muscles

A

Anterior deltoid
Middle deltoid
Supraspintaus

17
Q

Shoulder IR muscles

A

Subscapularis
Teres major
Pec major
Lat dorsi
Anterior deltoid

18
Q

Shoulder ER muscles

A

Infraspinatus
Teres minor
Posterior deltoid

19
Q
A

PHTY3120 Upper Limb (1 decks)

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