05- Ophthalmology

Question 1

what MHC class do corneal cells express?

Answer 1

Low expression of MHC type 1

Dont express MHC 2

Question 2

layers of the meninges?

Answer 2

skull

dura

arachnoid

pia

brain

Question 3

what receptor is rhodopsin?

Answer 3

G protein coupled receptor

Question 4

what is the vertical light pathway?

Answer 4

ganglion cells

bipolar cells

photoreceptors

Question 5

cones/rods see in dim light?

Answer 5

dim light

Question 6

what is the route of CFS through the ventricles?

Answer 6

lateral

(interventricular foramin)

third ventricle

(cerebral aqueduct)

fourth ventricle

median/lateral apertures

Question 7

what cranial nerve is responsible for tears?

Answer 7

CN V

Question 8

what is the shape of the lens in near and far sight?

Answer 8

near sphere

far flat

Question 9

Describe the blink reflex

Answer 9

Cornea to CNS via CN V

CNS to cornea via CN VII

Question 10

which drug penetrates epithelium and storma (hydrophilic/lipophiilic)

Answer 10

lipophilic epithlium

hydrophilic stroma

Question 11

treatments for bacterial keratitis and bacterial conjuctivitis

Answer 11

keratitis- ofloxacin

conjuctivitis- chloramphenicol

Question 12

treatment for bacterial conjucitivitis (s. aureus)

Answer 12

fusidic acid

Question 13

chloramphenicol is bacteriocidal/static

Answer 13

bacteriostatic