Superficial Back

Question 1

Origin of Trapezius

Answer 1

occipital bone
ligamentum nucae
spinous process of C7-T12

Question 2

Insertion of Trapezius

Answer 2

Lateral 1/3 of clavicle

Acromion and spine of scapula

Question 3

Motor inneravtion of Trapezius

Answer 3

CN XI, spinal accessory

Question 4

Pain/properioception innervation of trapezius

Answer 4

C3,C4

Question 5

Action of Trapezius

Answer 5

hold upper limb to trunk, adduct, raise, depress, and rotate scaupla.

Question 6

What does nerve injury of CN XI cause

Answer 6

dropping of shoulder

Question 7

Origin of latissimus dorsi

Answer 7

spinous process of lower 6 thoracic vertebrae
thoracolumbar fascia
iliac crest and lower 3 or 4 ribs

Question 8

Insertion of Latissimus Dorsi

Answer 8

humerus

Question 9

innervation of latissimus dorsi

Answer 9

thoracodorsal nerve

Question 10

blood supply of latissimus dorsi

Answer 10

thoracodorsal artery

Question 11

Nerve injury affecting latissimus dorsi causes

Answer 11

inability to raise trunk with upper limbs during climbing

Question 12

Action of latissimus dorsi

Answer 12

extend arm and rotates it medially

adducts, extends, and medially rotates the humerus at the shoulder joint.

Question 13

Triangle of auscultation is bound by what

Answer 13

trapezius, latissimus dorsi and medial border of scapula

Question 14

Origin of Levator Scapulae

Answer 14

transverse processes of 1st 3 or 4 cervical vertebrae

Question 15

Insertion of levator scauplae

Answer 15

superior angle of scupla and along its upper medial border

Question 16

Blood supply to levator scapula

Answer 16

dorsal scapular a and deep branch of transervse cervical a

Question 17

Innervation of levator scapula

Answer 17

dorsal scapular nerve and C3 and C4

Question 18

Action of levator scapulae

Answer 18

elevates scapula.

Rotates scapula to move glenoid cavity and shoulder joint inferiorly

Question 19

Origin of Rhomboid major and minor

Answer 19

spines of lower cervical (C7) and upper thoracic (T1-T5) vertebra

Question 20

Insertion of rhomboid major and minor

Answer 20

medial border of scapula

Question 21

Blood supply to rhomboid major and minor

Answer 21

dorsal scapular a

Question 22

Action of rhomboid major and minor

Answer 22

adduct scapular, rotate scapula so glenoid cavity moves inferiorly

Question 23

Innervation of Rhomboid major and minor

Answer 23

Dorsal scapular n and some fibers from C4

Question 24

Injury to dorsal scapular n causes

Answer 24

inability to adduct scapula

Question 25

Serratus Posterior Superior origin

Answer 25

ligamentum nuchae and spines of C7 to T3 vertebra

Question 26

Insertion of Serratus Posterior Superior

Answer 26

2nd to 4th ribs

Question 27

Innervation of Serratus Posterior Superior

Answer 27

1st 3 thoracic spinal nerves

Question 28

Action of Serratus Posterior Superior

Answer 28

elevate ribs

Question 29

Origin of Serratus Posterior Inferior

Answer 29

T11-L2 vertebral spines

Question 30

Inseriotion of Serratus Posterior Inferior

Answer 30

lower 4 ribs

Question 31

Action of Serratus Posterior Inferior

Answer 31

aid in respiration by holding ribs steady when diaphram moves up

Question 32

Innervation of Serratus Posterior Inferior

Answer 32

last 4 thoracic nerves