mod 10

Question 1

which nerves are most anterior

Answer 1

olfactory 1 and optic 2

Question 2

which cranial nerves carry sensory info

Answer 2

Olfactory 1, optic 2, vestibulocochlear 8

Question 3

which cranial nerves carry motor info

Answer 3

oculomotor 3, trochlear 4, abducens 6, spinal accessory 11, hypoglossal 12

Question 4

which cranial nerves carry both

Answer 4

trigeminal 5, facial 7, glossopharyngeal 9, vagus 10

Question 5

structures of the external ear

Answer 5

auricle and external auditory meatus

Question 6

what is found in the middle ear

Answer 6

3 ear ossicle (malleus, incus, stapes), pharyngotympanic tube, oval window

Question 7

structures of the inner ear

Answer 7

bony labyrinth (semicircular canals, vestibule, and cochlea) and membranous labyrinth

Question 8

cochlea function

Answer 8

hearing

Question 9

vestibule function

Answer 9

equilibrium (acceleration)

Question 10

semicircular canal function

Answer 10

equilibrium (rotation)

Question 11

what are the structures of lacrimal apparatus

Answer 11

lacrimal glands, lacrimal sac, and nasolacrimal duct

Question 12

3 layers of the eyeball

Answer 12

fibrous layer, vascular layer, and retinal layer

Question 13

what is found in the fibrous layer

Answer 13

sclera and cornea

Question 14

what is found in retina

Answer 14

melanocytes and rods and cones

Question 15

functions of the photoreceptor cells

Answer 15

rods work best in dim light and cones are used for bright light and color vision

Question 16

macula lutea

Answer 16

area of concentrated cone cells at posterior pole

Question 17

optic disc

Answer 17

blind spot in eye area where optic nerve attaches

Question 18

fovea centralis

Answer 18

area of only cone cells at center of macula lutea

Question 19

how do you focus on far and near things

Answer 19

accommodation or when the lens becomes more/less spherical

Question 20

what is found in vascular layer

Answer 20

choroid, ciliary body muscles, and the iris

Question 21

what makes pupils larger or smaller

Answer 21

sphincter pupillae- makes it smaller dilator pupillae - makes it larger