Topic 3 - Flexors of the shoulder

Question 1

M.triceps brachii caput longun

Answer 1

O: distal 2/3 of cau. scapular border
I: Tuber olecrani ulnae
A: Flex shoulder and ext. elbow

Question 2

M.infraspinatus

Answer 2

O: Fossa infraspinatus, spine and cau.border of scapula
I: Facies m.infraspinatus
A: Acts as a med. collateral lig; flex shoulder joint.

Question 3

M.deltoideus

Answer 3

O: Pars scapularis from spina scapula, pars acromialis from acromion of scapula.
I: Tub.deltoidea humerii
A: Flex shoulder, participate in abducting the limb

Question 4

M.teres major

Answer 4

O: Angulus caudalis and prox. part margo cau. of scapula
I: Tub.teres major
A: Flex shoulder

Question 5

M.subscapularis

Answer 5

O: Fossa subscapularis
I: Tub.minor
A: Ext. and adduct shoulder and maintain flexion

Question 6

M.teres minor

Answer 6

O: Tub.infraglenoidale and distal part of margo cau. of scapula
I: Tub.teres minor
A: Flex shoulder

Question 7

The muscles

Answer 7

M.infrascapulris
M.subscapularis
M.teres minor
M.teres major
M.deltioideus
M.triceps caput longum