TOUCH, PAIN ,TASTE AND SMELL

Question 1

list the 5 specialised receptors in skin

Answer 1

merkel disc
meissner corpuscle
ruffini corpuscle
pacinican corpuscle
free nerve ending

Question 2

what are signals from the skin conveyed by

Answer 2

• mechanoreceptors
• ## thermoreceptorsnocicoceptors

Question 3

taste buds epithelium

Answer 3

stratified epitheliumw

Question 4

how many taste buds on lateral surface of each vallate (circumvallate)

Answer 4

250 ~

Question 5

how does sensory process start with smell

Answer 5

with interaction of odorant molecules with olfactory receptors locatted on the cilia of olfactory sensory neurons

Question 6

outer ear consists of

Answer 6

auricle and external auditory meatus

Question 7

middle ear consists of

Answer 7

tympanic membrane and auditory ossicles

Question 8

inner ear consists of

Answer 8

cochlea
semicircular canals (3)
vestibulocochlear nerves

Question 9

what is the inner ear responsible for

Answer 9

using mechanoreceptors to detect stimuli for hearing in cochlea and equilinriom in semicircular canals and send nerve impulses to brain via VESTI/

Question 10

what does the auditory ossicles contain

Answer 10

malleus (hamer)
incus
stapes

Question 11

what is the malleus attached to

Answer 11

tympanic membrane

Question 12

what is stapes attached to

Answer 12

cochlea

Question 13

what does the. midd;e ear also contain

Answer 13

eustachian tube auditory tube - connects with pharynx for equalising air pressure in the skull (blocked ear feeling)

Question 14

what happens when sound hitting onto tympanic membrane cause

Answer 14

auditory ossicles to vibrate > amplification of sound waves

Question 15

what. happens when ossicles vibrate

Answer 15

• waves int he endolymph fluid inside the cochlea are generated

Question 16

what do endolymph waves bend

Answer 16

stereocilia

Question 17

what does the utricle and saccule control

Answer 17

static position and linear acceleration of head

Question 18

function of semicirculrar ducts

Answer 18

rotational head movements

Question 19

where do the ducts of semicircular cansl extend from and return to

Answer 19

wall of the utricle

Question 20

what does each of the semicircular ducts have and expanded end called

Answer 20

ampulla

Question 21

where is the hair cells and supporting cells of the ducts in semicorcualr located

Answer 21

crista ampullaris