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
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.
3
Q
M.coracobrachialis
A
O: Proc.coracoideus of tub.supraglenoidale
I: Crista tub. minor
A: Ext. shoulder joint
4
Q
M.biceps brachii
A
O: Tub.supraglenoidale
I: Tub.radii and tub.ulnae
A: Ext. shoulder and flexes elbow
5
Q
The muscles
A
M.supraspinatus
M.subscapularis
M.coracobrachialis
M.biceps brachii
