Neuroanatomy Revision Night: PNS Flashcards
what are the bifurcations of a spinal nerve called
dorsal and ventral rami
what happens at the dorsal root ganglion
cell bodies for sensory neurons are made
dermatome for back of the head
C2
dermatome for posterior neck?
C3
is there a C1 dermatome?
no, no dorsal roots
what week of embryological development do you begin budding of the limbs?
4
C7 covers the posterior surface of…
2nd and 3rd digit
what dermatome covers the posterior 4th and 5th digits?
C8
T8 landmark?
xiphoid process
T12 landmark?
pubic symphysis
dermatomes are more superior on posterior trunk T or F
T
medial malleolus landmark?
L4
big toe landmark?
L5 (largest number, largest toe
pinky toe landmark?
S1 (smallest landmark, smallest toe)
most of the buttocks is covered by…
S3
adam’s apple landmark?
C2
sacral plexus is from….
L5-S4
peripheral nerves are made up of ___ spinal nerves
multiple
cutaneous innervation of the outside of the ear?
great auricular nerve
cutaneous innervation to the head and neck clockwise from the side of the head?
little goats tread softly lesser occipital great auricular transverse cervical supraclavicular
what nerve is responsible for scapular winging
long thoracic nerve (supplies serratus anterior)
innervation of the lateral forearm
musculocutaneous
cutaneous innervation to the lateral cubital fossa region?
radial
anterior cutaneous innervation to the thigh?
femoral
lateral cutaneous innervation to thigh?
LCN of thigh
medial cutaneous innervation to thigh?
obturator nerve
posterior cutaneous innervation to thigh?
PCN of thigh
sciatic nerve roots?
L4-S3
cutaneous innervation to medial leg
saphenous nerve
cutaneous innervation to lateral leg?
sural nerve
dorsal web space cutaneous innervation?
deep fibular
spinal nerve tested from knee reflex?
L4
spinal nerve tested for ankle reflex?
S1
spinal nerve tested for biceps reflex?
C5
