Innervation

Question 1

Anterior compartment innervation

Answer 1

Median nerve
Except 1.5 muscles by ulnar nerve

Question 2

Posterior compartment innervation

Answer 2

All radial nerve

Question 3

Indication of radial nerve problem

Answer 3

Wrist drop

Question 4

Innervation of hand

Answer 4

All by ulnar nerve, except thenar muscles & LOAF

Question 5

Innervation of upper limb

Answer 5

Everything ventral rami
C5-T1

Question 6

Innervation of deltoid muscle

Answer 6

axillary nerve

Question 7

innervation of supraspinatus

Answer 7

suprascapular nerve

Question 8

innervation of infraspinatus

Answer 8

suprascapular nerve

Question 9

What does the suprascapular nerve innervate?

Answer 9

supraspinatus & infraspinatus

Question 10

Innervation of teres minor

Answer 10

axillary nerve

Question 11

What does axillary nerve innervate?

Answer 11

deltoid & teres minor

Question 12

Innervation of teres major

Answer 12

lower subscapular nerve

Question 13

innervation of subscapularis

Answer 13

Upper and Lower subscapular nerve
Dual Innervation

Question 14

What does lower subscapular nerve innervate?

Answer 14

subscapularis & teres major

Question 15

What does long thoracic nerve innervate?

Answer 15

Serratus anterior muscle

Question 16

Axillary artery course & branch

Answer 16

from outer border of first rip to upper border pec mino (superior thoracic artery)
deep to pec minor (thoracoacromial & lateral thoracic arteries)
from lower border of pec minor to lower border of teres major (subscapular, anterior circumflex humeral, posterior circumflex humeral arteries)
Continues from lower border teres major, axillary artery becomes brachial and continue on

Question 17

Innervation of pec major

Answer 17

lateral pectoral nerve (C5-7) supplies clavicular head
medial pectoral nerve (C8-T1) supplies sternocostal head
Dual Innervation

Question 18

innervation of pec minor

Answer 18

medial pectoral nerve (C8-T1)

Question 19

innervation of subclavius

Answer 19

nerve to subclavius

Question 20

innervation of serratus anterior

Answer 20

long thoracic nerve

Question 21

lateral pectoral nerve innervates what?

Answer 21

pec major

Question 22

medial pectoral nerve innervates what?

Answer 22

both pec minor and pec major

Question 23

Long thoracic nerve innervates what?

Answer 23

serratus anterior muscle

Question 24

Intercostobrachial nerve innervates what?

Answer 24

only skin of upper half of medial and posterior aspects of arm

Question 25

Cutaneous innervation of breast

Answer 25

anterior & lateral cutaneous branches of 4-6th intercostal nerves supraclavicular nerves for upper portion of breast

Question 26

Deep innervation of breast

Answer 26

autonomic innervation from sympathetic fibers for vasoconstriction and stimulation of myoepithelial cells parasympathetic fibbers for secretomotor function

Question 27

Nipple areola complex innervation

Answer 27

highly innervated by 4th intercostal nerve

Question 28

innervation biceps brachii

Answer 28

musculocutaneous nerve

Question 29

corachobrachialis innervation

Answer 29

musculocutaneous nerve

Question 30

brachialis innervation

Answer 30

musculocutaneous and radial nerve

Question 31

triceps brachii innervation

Answer 31

radial nerve

Question 32

aconeus innervation

Answer 32

radial nerve