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Muscle Movements > Movements At The Glenohumeral Joint > Flashcards

Movements At The Glenohumeral Joint Flashcards

1
Q

What causes flexion at the glenohumeral joint?

A

Anterior fibres of the deltoid, Pectoralis Major at the clavicle head

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2
Q

What is the range of flexion at the glenohumeral joint?

A

110

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3
Q

What causes extension at the glenohumeral joint?

A

Deltoid post fibres, Teres Major, Latissimus Dorsi, Pectoralis Major (sternocostal head)

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4
Q

What is the range of extension at the glenohumeral joint?

A

50-70

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5
Q

What causes abduction at the glenohumeral joint?

A

Middle fibres of Detoid, Supraspinatus (initiates)

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6
Q

What is the range of abduction at the glenohumeral joint?

A

100-120

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7
Q

What causes adduction at the glenohumeral joint?

A

Pectoralis major, Latissimus Dorsi, Teres Major, Coracobrachialis

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8
Q

What is the range of adduction at the glenohumeral joint?

A

30-40

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9
Q

What causes medial rotation at the glenohumeral joint

A

Subscapularis, Pectoralis Major, Latissimus Dorsi, Anterior Deltoid

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10
Q

What is the range of medial rotation at the glenohumeral joint?

A

90

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11
Q

What causes lateral rotation at the glenohumeral joint?

A

Infraspinatus, Teres Minor, Posterior Deltoid

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12
Q

What is the range of lateral rotation at the glenohumeral joint?

A

80

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13
Q

What causes shoulder instability?

A

Shallow glenoid fossa
Large head of humerous
Loose articular capsule

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14
Q

What are solutions to shoulder instability?

A

Glenoid Labrum
Ligaments
Rotator Cuff Muscles

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15
Q

What are the muscles of the rotator cuff?

A

Subscapularos
Supraspinatus
Infraspinatus
Teres Minor

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Muscle Movements (11 decks)

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