sense organs

Question 1

tympanic membrane function

Answer 1

transmits sound from outer ear to ossicles

Question 2

auditory ossicles function

Answer 2

amplify sounds from the air to cochlea

Question 3

cochlear function

Answer 3

hearing - lined with stereocilia

Question 4

vestibular apparatus function

Answer 4

balance organ

Question 5

eustacian tube

Answer 5

protects middle ear from pressure changes

Question 6

cause otitis externa

Answer 6

swimmers ear

water in ear

Question 7

cause otitis media

Answer 7

infection

Question 8

cause labrythitis

Answer 8

head injury, bacterial/viral infection

Question 9

s/s meniere’s disease

Answer 9

dulled hearing ‘attacks’
verigo
nausea
tinnitus

Question 10

1 cause of hearing impairment

Answer 10

measles

Question 11

conjunctiva function

Answer 11

protects cornea/front of eye when shut

Question 12

lacrimal apparatus function

Answer 12

produces tears

Question 13

to achieve clear vision, light has to be focussed on the retina this involves

• — of the light rays
• – of the eyes

Answer 13

refraction

accomodation

Question 14

when light moves from one substance to another with a different density the light rays bend - called

Answer 14

refraction

Question 15

describe 3 cells types that make up olfactory epithelium

Answer 15

olfactory receptors
supporting cells
basal cells

Question 16

contraction/relaxation of ciliary muscle to project a sharp image on retina

Answer 16

accomodation

Question 17

cells in retina that allow us to see in low light but don’t provide colour

Answer 17

rod cells

Question 18

vision cells in retina that are stimulated by bright light and allow us to see colour

Answer 18

cone cells

Question 19

chronic inflammation of eye causes itching and eyelid dandruff

Answer 19

blepharitis

Question 20

s/s blepharitis

Answer 20

redness
burning itching
sticky eyelids on waking
flakes at eyelash base

Question 21

stye cause

Answer 21

usually staphylococcus

Question 22

cause uveitis

Answer 22

autoimmune disease

Question 23

squint cause

Answer 23

genetic

Question 24

glaucoma cause

Answer 24

obstruction of canal of schlemm (smoking)

Question 25

glaucamona s/s

Answer 25

pain in eyes
haloes around lights
sensitivity to bright light
watery eye

Question 26

what does mucous in nose do

Answer 26

moisten olfactory epithelium

dissolve odorants

Question 27

taste also known as

Answer 27

gustation