practice questions

Question 1

cold water creates a fast nystagmus towards what side

Answer 1

toward the opposite ear

Question 2

what part of the body will be the first to lose thermal sense from a spinal cord syrinx at T4

Answer 2

T4 first then 5, then 6, then 7, then 8 depending on how much the syrinx hits

Question 3

spinal trigeminal tract retrograde label for cell bodies

Answer 3

sensory ganglion of 5,7,9,10

trigeminal, geniculate, and “sensory ganglion of 9 and 10”

Question 4

layer 4C alpha Cell bodies

Answer 4

layers 1 and 2 of LGN because this layer has M cells

Question 5

layer 3 of the R LGN has cell bodies?

Answer 5

3 is ipsilateral, so itll be parvocellular ganglion cells of the R retina (layers 1,4,6 are contralateral)

Question 6

transecting the left meyers loop creates what kind of visual field loss

Answer 6

“pie in the sky” loss of R, superior visual field

Question 7

what is strx called that houses the pituitary gland? what bone is it part of?

Answer 7

sella turcica- have the anterior and posterior clinoid process
tuberculum sellae is the anterior portion
in sphenoid

Question 8

what sinus is anterior to pituitary

Answer 8

sphenoid sinus

Question 9

what sinus is lateral to the pituitary

Answer 9

cavernous sinus