Muscles that move the shoulder Joint

Question 1

Origin of Pectoralis Major (3)

Answer 1

Clavicle, Sternum, and ribs 1-7

Question 2

Insertion of Pectoralis major (2)

Answer 2

Greater tubercle and lateral lip of intertubercal sulcus

Question 3

Action of Pectoralis major (2)

Answer 3

Shoulder adduction and medial rotation

Question 4

Origin of Latissimus dorsi (5)

Answer 4

Spine T7-L5, lumbar vertebrae,crest of corocom and illium

Question 5

Insertion of Latissimus Dorsi (1)

Answer 5

intertubercular sulcus of the humerus

Question 6

Action of Latissimus Dorsi (3)

Answer 6

Shoulder extension , adduction and medial rotation

Question 7

Origin of Deltoid (3)

Answer 7

Anterior: Clavicle
Lateral: Acromion
Posterior: Spine

Question 8

Insertion of the Deltoid (1)

Answer 8

Deltoid tuberosity

Question 9

Action of the Deltoid ( 3)

Answer 9

Anterior: flexion, medial rotation
Lateral: shoulder extension
Posterior: extension, lateral rotation

Question 10

Origin of Subscapularis (1)

Answer 10

Subscapula fossa

Question 11

Insertion of subscapularis (1)

Answer 11

lesser tubercle

Question 12

Action of subscapularis (1)

Answer 12

shoulder medial rotation

Question 13

Origin of Supraspinatous (1)

Answer 13

supraspinous fossa

Question 14

Insertion of supraspinatous (1)

Answer 14

greater tubercle

Question 15

Action of Supraspinatous (1)

Answer 15

shoulder lateral rotation

Question 16

Origin of Infraspinatous (1)

Answer 16

infraspinous fossa

Question 17

Insertion of infraspinatous (1)

Answer 17

Greater tubercle

Question 18

Action of Infraspinatous (1)

Answer 18

shoulder lateral rotation

Question 19

Origin of teres minor (1)

Answer 19

inferior lateral border

Question 20

Insertion of teres minor (1)

Answer 20

greater tubercle

Question 21

Action of teres minor (2)

Answer 21

shoulder lateral rotation and extension

Question 22

Origin of teres major (1)

Answer 22

Inferior angle

Question 23

insertion of teres major (1)

Answer 23

intertubercle sulcus

Question 24

action of teres major (2)

Answer 24

shoulder lateral rotation and extension