The Shoulder Joint Medial Rotators

Question 1

Name The Shoulder Joint Medial Rotators

Answer 1

Subscapularis, Teres Major, Latissimus Dorsi, Pectoralis Major, Deltoid (Ant).

Question 2

What is another term for medial rotation of the shoulder?

Answer 2

internal rotation

Question 3

Subscapularis origin

Answer 3

medial 2/3rds of subscapular fossa on scapula

Question 4

Subscapularis insertion

Answer 4

lesser tubercle of humerus

Question 5

Subscapularis nerve supply

Answer 5

subscapular nerve C5, 6, 7

Question 6

Subscapularis action

Answer 6

medial rot. & adduction of shoulder

Question 7

Subscapularis function

Answer 7

First part of frontcrawl pull

Question 8

Teres Major origin

Answer 8

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

Question 9

Teres Major insertion

Answer 9

medial lip of intertubercular groove on humerus

Question 10

Teres Major nerve supply

Answer 10

lower subscapular C6. 7

Question 11

Teres Major action

Answer 11

flexed arm ext.
adduction & medial rot. of humerus

Question 12

Teres Major function

Answer 12

first part of frontcrawl pull

Question 13

Latissimus dorsi origin

Answer 13

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

Question 14

Latissimus dorsi insertion

Answer 14

intertubercular groove of humerus

Question 15

Latissimus dorsi nerve supply

Answer 15

thoracodorsal C6, 7, 8

Question 16

Latissimus dorsi action

Answer 16

flexed arm ext.
adduction & medial rot. of humerus

Question 17

Latissimus dorsi function

Answer 17

first pert of frontcrawl pull

Question 18

Pectoralis Major origin

Answer 18

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

Question 19

Pectoralis Major insertion

Answer 19

lat. lip of intertubercular groove of humerus

Question 20

Pectoralis Major nerve supply

Answer 20

pectoral: medial C8 & lateral C5, 6, 7

Question 21

Pectoralis Major action

Answer 21

shoulder medial rot. & adduction
clavicular: shoulder flex.
sternal: shoulder ext. from flexed

Question 22

Pectoralis Major function

Answer 22

first part of frontcrawl pull

Question 23

Deltoid (Ant) origin

Answer 23

lat. 1/3 of ant. aspect of clavicle

Question 24

Deltoid (Ant) insertion

Answer 24

deltoid tuberosity of humerus

Question 25

Deltoid (Ant) nerve supply

Answer 25

axillary C5, 6

Question 26

Deltoid (Ant) action

Answer 26

shoulder flexion & medial rot.

Question 27

Deltoid (Ant) function

Answer 27

first part of frontcrawl pull