Anatomy 3: Spinal Nerves

Question 1

what do spinal nerves do

Answer 1

each pair supplies one body wall segment with

• somatic sensory
• somatic motor
• organ function (sympathetics are carried on spinal nerves)
• reflexes

Question 2

how do you test both the spinal nerves sensory and motor segment

Answer 2

spinal reflexes

Question 3

which gyrus is somatosensory

Answer 3

postcentral

Question 4

C1 dermatome

Answer 4

back of scalp/adams apple

Question 5

C2 dermatome

Answer 5

back of neck and jugular notch

Question 6

c4 dermatome

Answer 6

clavicle and shoulder tip

Question 7

C5 DERMATOME

Answer 7

badge patch

Question 8

C6 dermatome

Answer 8

thumb

Question 9

C7 dermatome

Answer 9

middle finger

Question 10

C8 dermatome

Answer 10

little finger

Question 11

T1 dermatome

Answer 11

medial forearme

Question 12

T2 dermatome

Answer 12

medial arm and sternal angle

Question 13

t4 dermatome

Answer 13

male nipple

Question 14

What dermatome is the xiphoid process

Answer 14

T8

Question 15

What dermatome is the umbilicus

Answer 15

T10

Question 16

What dermatome is the pubic symphysis

Answer 16

T12

Question 17

L1 dermatome

Answer 17

groin

Question 18

L2 dermatome

Answer 18

anterior thigh

Question 19

L3 dermatome

Answer 19

anterior knee

Question 20

L4 dermatome

Answer 20

medial malleolus

Question 21

L5 dermatome

Answer 21

dorsum of foot

Question 22

S1 dermatome

Answer 22

heel

Question 23

S2 dermatome

Answer 23

posterior knee

Question 24

S3 dermatome

Answer 24

buttock

Question 25

S4 dermatome

Answer 25

perineum

Question 26

S5 dermatome

Answer 26

peranal skin

Question 27

Roots of the femoral nerve and therefore which dermatomes does the femoral nerve supply

Answer 27

L2, 3, 4

Question 28

roots of the greet auricular nerve

Answer 28

C2, 3

Question 29

roots of the supraclavicular nerves and area they supply

Answer 29

clavicle and shoulder tip

C3,4

Question 30

what and where is the ‘nerve point’ of the neck

Answer 30

sensory nerves of cervical plexus pass from superficial to deep fascia at this point
-midpoint of the posterior border of the SCM

Question 31

what name nerve supplies the upper anterolater trunk wall

Answer 31

intercostal nerves
(anterior rami of T2-T11)

Question 32

what supplies the lower anterolateral trunk wall

Answer 32

iliohypogastric and ilioinguinal nerves

bifurcation of anterior ramus of L1

Question 33

what is the root of the subcostal nerve and as such which dermatome does it supply

Answer 33

anterior ramis of T12

Question 34

which nerve supplies the badge patch and what are its roots

Answer 34

axillary

C5, 6

Question 35

roots of radial nerve

Answer 35

C6, 7, 8

Question 36

roots of the ulnar nerve

Answer 36

(C7), C8, T1

Question 37

roots of the median nerve

Answer 37

C6, 7, 8, T1