The Shoulder Joint Adductors

Question 1

Name The Shoulder Joint Adductors

Answer 1

Pectoralis Major, Latissimus Dorsi, Teres Major, Coracobrachialis

Question 2

Pectoralis Major origin

Answer 2

med. 1/2 of ant. surface of clavicle
lat. aspect of sternum body

Question 3

Pectoralis Major insertion

Answer 3

lat. lip of intertubercular grooves of humerus

Question 4

Pectoralis Major nerve supply

Answer 4

Pectoral: medial C8 & lateral C5, 6, 7

Question 5

Pectoralis Major action

Answer 5

medial rot. & shoulder adduction
Clavicular - flexion
sternal - extension from flexed

Question 6

Pectoralis Major function

Answer 6

pushing, punching, throwing

Question 7

Latissimus dorsi origin

Answer 7

lat. aspects of thoracolumbar fascia attached to spinous process & ligamentous attachments of lower 6 thoracic vertebrae, 5 lumbar vertebrae & sacrum
outer lip of distal 1/3 of iliac crest
outer surface of lower 3 / 4 ribs
inferior angle of scapula

Question 8

Latissimus dorsi insertion

Answer 8

intertubercular groove of humerus

Question 9

Latissimus dorsi nerve supply

Answer 9

thoracodorsal C6, 7, 8

Question 10

Latissimus dorsi action

Answer 10

flexed arm ext.
adduction & medial rot. of humerus

Question 11

Latissimus dorsi function

Answer 11

climbing

Question 12

Teres Major origin

Answer 12

lower 1/4 of lat. border & dorsal surface of inferior angle of scapula

Question 13

Teres Major insertion

Answer 13

medial lip of intertubercular groove on humerus

Question 14

Teres Major nerve supply

Answer 14

lower subscapular nerve C6, 7

Question 15

Teres Major action

Answer 15

flexed arm ext.
adduction & medial rot. of humerus

Question 16

Teres Major function

Answer 16

climbing

Question 17

Coracobrachialis origin

Answer 17

coracoid process of scapula

Question 18

Coracobrachialis insertion

Answer 18

medial side of humerus shaft (1/3 down)

Question 19

Coracobrachialis nerve supply

Answer 19

musculocutaneous C6, 7

Question 20

Coracobrachialis action

Answer 20

shoulder flexion & adduction

Question 21

Coracobrachialis function

Answer 21

climbing