shoulder girdle Flashcards

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1
Q

ligaments of the shoulder girdle

A

Superior, middle and inferior glenohumeral ligament
Redundant capsule
Coracohumeral ligament
Transverse humeral ligament
Coracoclavicular ligaments
Acromioclavicular ligament

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2
Q

list muscles involved in shoulder flexion

A

pectoralis major,
anterior deltoid,
coracobrachialis

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3
Q

list muscles of shoulder extension

A

posterior deltoid, latissimus doors, teres major

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4
Q

list muscles of shoulder abduction

A

supraspinatus, deltoid, trapezius, serratus anterior

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5
Q

list muscles of shoulder adduction

A

pectoralis major, latissimus doors, teres major

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6
Q

list muscles of shoulder internal rotation

A

subscapularis, pectorals major, teres major

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7
Q

list muscles of shoulder external rotation

A

infraspinatus and teres minor, posterior head of deltoid

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8
Q

structures responsible for shoulder stability

A

Rotator cuff muscle - subscapularis, supraspinatus, infraspinatus, teres minor
Glenoid labrum
Ligaments
Biceps tendon

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9
Q

innervation of the shoulder girdle hint; lateral and medial, posterior cord

A

Lateral cord
Musculocutaneous nerve
lateral pectoral nerve
lateral root at median

Medial cord
medial pectoral nerve
medial cutaneous nerve of arm and forearm
medial root of median
ulnar

Posterior cord
Subscapular nerve(2 superior and inferior)
nerve TO latissimus dorsi
Axillary nerve

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10
Q

list origin, insertion, innervation, action and blood supply of subscapularis

A

O - medial 2/3 of sub scapular fossa
I - lesser tubercle of humerus
N - upper and lower sub scapular nerves
A - medial rotation

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11
Q

list origin, insertion, innervation, action and blood supply of supraspinatus

A

O - medial 2/3 of supraspinatus fossa
I - greater tubercle of humerus
N - supra scapular nerve
A - abduction of shoulder an stabilisation

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12
Q

list origin, insertion, innervation, action and blood supply of infraspinatus

A

O - medial 2/3 of infraspinous fossa of scapula
I - middle facet of posterior surface of greater tubercle of humerus
N - Suprascapular nerve
A - lateral rotation and stabilisation

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13
Q

list origin, insertion, innervation, action and blood supply of teres minor

A

O - upper 2/3 of flattened strip of bone posterior of scapula, lateral border of scapula
I - inferior aspect of greater tubercle of humerus
N - axillary nerve
A - lateral rotation and stabilisation of GH joint

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