Neuroanatomy Revision Night: PNS

Question 1

what are the bifurcations of a spinal nerve called

Answer 1

dorsal and ventral rami

Question 2

what happens at the dorsal root ganglion

Answer 2

cell bodies for sensory neurons are made

Question 3

dermatome for back of the head

Answer 3

C2

Question 4

dermatome for posterior neck?

Answer 4

C3

Question 5

is there a C1 dermatome?

Answer 5

no, no dorsal roots

Question 6

what week of embryological development do you begin budding of the limbs?

Answer 6

4

Question 7

C7 covers the posterior surface of…

Answer 7

2nd and 3rd digit

Question 8

what dermatome covers the posterior 4th and 5th digits?

Answer 8

C8

Question 9

T8 landmark?

Answer 9

xiphoid process

Question 10

T12 landmark?

Answer 10

pubic symphysis

Question 11

dermatomes are more superior on posterior trunk T or F

Answer 11

T

Question 12

medial malleolus landmark?

Answer 12

L4

Question 13

big toe landmark?

Answer 13

L5 (largest number, largest toe

Question 14

pinky toe landmark?

Answer 14

S1 (smallest landmark, smallest toe)

Question 15

most of the buttocks is covered by…

Answer 15

S3

Question 16

adam’s apple landmark?

Answer 16

C2

Question 17

sacral plexus is from….

Answer 17

L5-S4

Question 18

peripheral nerves are made up of ___ spinal nerves

Answer 18

multiple

Question 19

cutaneous innervation of the outside of the ear?

Answer 19

great auricular nerve

Question 20

cutaneous innervation to the head and neck clockwise from the side of the head?

Answer 20

little goats tread softly
lesser occipital
great auricular
transverse cervical
supraclavicular

Question 21

what nerve is responsible for scapular winging

Answer 21

long thoracic nerve (supplies serratus anterior)

Question 22

innervation of the lateral forearm

Answer 22

musculocutaneous

Question 23

cutaneous innervation to the lateral cubital fossa region?

Answer 23

radial

Question 24

anterior cutaneous innervation to the thigh?

Answer 24

femoral

Question 25

lateral cutaneous innervation to thigh?

Answer 25

LCN of thigh

Question 26

medial cutaneous innervation to thigh?

Answer 26

obturator nerve

Question 27

posterior cutaneous innervation to thigh?

Answer 27

PCN of thigh

Question 28

sciatic nerve roots?

Answer 28

L4-S3

Question 29

cutaneous innervation to medial leg

Answer 29

saphenous nerve

Question 30

cutaneous innervation to lateral leg?

Answer 30

sural nerve

Question 31

dorsal web space cutaneous innervation?

Answer 31

deep fibular

Question 32

spinal nerve tested from knee reflex?

Answer 32

L4

Question 33

spinal nerve tested for ankle reflex?

Answer 33

S1

Question 34

spinal nerve tested for biceps reflex?

Answer 34

C5