Topic 2 - Extensors of the shoulder Flashcards

1
Q

M.supraspinatus

A

O: Fossa supraspinatus, spine and cranial border of scapula
I: Tub.major
A: Ext. and stabilize shoulder

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2
Q

M.subscapularis

A

O: Fossa subscapularis
I: Tub.minus
A: It´s wide tendon act´s like a lat. collateral lig for shoulder joint; extends shoulder. Also maintain flexion.

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3
Q

M.coracobrachialis

A

O: Proc.coracoideus of tub.supraglenoidale
I: Crista tub. minor
A: Ext. shoulder joint

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4
Q

M.biceps brachii

A

O: Tub.supraglenoidale
I: Tub.radii and tub.ulnae
A: Ext. shoulder and flexes elbow

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5
Q

The muscles

A

M.supraspinatus
M.subscapularis
M.coracobrachialis
M.biceps brachii

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