Upper limb - muscles and nerves

Question 1

Posterior muscles positioning shoulder

Answer 1

-Trapezius
-Rhomboid major
-Rhomboid minor
-Levator scapulae

Question 2

Anterior muscles positioning shoulder

Answer 2

-Pectoralis minor
-Serratus anterior

Question 3

3 parts Trapezius is divided into

Answer 3

-descending (superior)
-transverse (middle)
-ascending (inferior)

Question 4

Trapezius: action of descending (superior) trapezius

Answer 4

Elevate the scapula

Question 5

Trapezius: action of middle (transverse) trapezius

Answer 5

Retract the scapula

Question 6

Trapezius: action of ascending (inferior) Trapezius

Answer 6

Depress the scapula, lower the shoulder

Question 7

Trapezius: action of descending AND ascending trapezius - TOGETHER

Answer 7

They act together to rotate glenoid cavity superiorly

Question 8

Trapezius: attachments

Question 9

1. Name this muscle

Answer 9

trapezius

Question 10

2. Name this muscle

Answer 10

deltoid

Question 11

3. Name this muscle

Answer 11

levator scapula

Question 11

4. Name this muscle

Answer 11

rhomboid minor

Question 12

5. Name this muscle

Answer 12

rhomboid major

Question 13

6. Name this muscle

Answer 13

supraspinatus

Question 14

7. Name this muscle

Answer 14

infraspinatus

Question 15

8. Name this muscle

Answer 15

teres minor

Question 16

9. Name this muscle

Answer 16

teres major

Question 17

10. Name this muscle

Answer 17

tricep

Question 18

11. Name this muscle

Answer 18

erector spinae group

Question 19

12. Name this muscle

Answer 19

serratus posterior inferior

Question 20

13. Name this muscle

Answer 20

latissimus dorsi

Question 21

14. Name this muscle

Answer 21

thoracolumbar fascia

Question 22

Shoulder girdle: name the posterior muscles (4)

Answer 22

trapezius, rhomboid major, rhomboid minor, levator
scapulae

Question 23

Shoulder girdle: name the anterior muscles (2)

Answer 23

pectoralis minor, serratus anterior

Question 24

what are the 3 divisions of the trapezious?

Answer 24

descending/superior = elevate the scapula middle = retracts the scapula ascending/inferior = depress scapula, and lower the shoulder

Question 25

descending and ascending fibers work together to

Answer 25

rotate the glenoid cavity superiorly

Question 26

Red: What muscle is this? Where does it attach?

Answer 26

- trapezius: extends along the neck and superior half of the trunk - attaches the pectoral girdle (clavicle and scapula) to the neck and vertebral column

Question 27

Blue: What 2 muscles are this? Where do they attach?

Answer 27

- rhomboid minor on top (red), rhomboid major on bottom (green) - extends inferolaterally from the vertebral column to the medial border of the scapula

Question 28

difference between rhomboid major and minor?

Answer 28

minor is thicker and narrower major is thinner but wider

Question 29

action of the rhomboid major and minor ?

Answer 29

work together to retract the scapula and rotate the glenoid cavity inferiorly

Question 30

Green: What muscle is this? Where does it attach?

Answer 30

levator scapulae - lies partially deep to the trapezius - connects cervical vertebrae to the superomedial border of the scapula