The Senses

Question 1

what are the 5 senses

Answer 1

touch
smell
taste
sight
hear

Question 2

what is the touch organ

Answer 2

the skin

Question 3

what is the largest organ in the body

Answer 3

the skin

Question 4

what does the skin contain that allows it to feel

Answer 4

contains different receptors for pain, touch and temperature.

Question 5

why are some areas of skin more sensitive than others?

Answer 5

receptors are found a different concentration at different locations ie palm of hand is more sensitive.

Question 6

what are the 3 layers of the skin

Answer 6

adipose tissue, dermis, epidermis

Question 7

what does the epidermis consist of

Answer 7

cornified layer
granular layer
Malpighian layer

Question 8

what are the 3 hair labels

Answer 8

erector muscle
hair
sebaceous gland

Question 9

what are the 3 sweat labels

Answer 9

sweat pore
sweat duct
sweat gland

Question 10

what is the organ of taste

Answer 10

the tongue

Question 11

what tastes can taste buds detect

Answer 11

sweet
salty
sour
bitter

Question 12

what is the organ of smell

Answer 12

the nose

Question 13

what does the nose contain that allows it to detect many smells

Answer 13

the olfactory neurond

Question 14

what is the organ of sight

Answer 14

eye

Question 15

what are the labels for the eye

Answer 15

conjuctiva
cornea
aqueous humour
pupil
lens
iris
suspensory ligaments
ciliary muscle
sclera
choroid
retina
foyea
blind spot
optic nerve
vitreous humour
external muscle

Question 16

function of conjunctiva

Answer 16

membrane around the eye, for protection

Question 17

function of Sclera

Answer 17

tough white coat that holds the eye in shape

Question 18

function of cornea

Answer 18

front part of the sclera, lets light in and bends and focuses it onto

Question 19

function of retina

Answer 19

acts as a screen for images we view. contains light receptors ie rods and cones

Question 20

function of fovea

Answer 20

part of retina where most images are formed

Question 21

function of blind spot

Answer 21

where the optic nerve leaves the retina, no cones or rods

Question 22

function of optic nerve

Answer 22

carries impules to the brain

Question 23

function of lens

Answer 23

focuses light on the retina

Question 24

function of iris

Answer 24

coloured part of eye which controls the amount of light let in

Question 25

function of pupil

Answer 25

black circle at the front of the eye, lets light into the eye

Question 26

function of ciliary muscle

Answer 26

changes the shape of the lens

Question 27

function of aqueous/vitreous humour

Answer 27

give shape to the eye

Question 28

what colours do rods detect

Answer 28

black and white

Question 29

what colours do cones detect

Answer 29

3 types of cone: red blue green

Question 30

do we have more rods or cones?/

Answer 30

rods

Question 31

labels for the ear

Answer 31

pinna auditory canal eardrum hammer anvil stirrup (ossicles) semi-circular canals vestibular nerve cochlear nerve cochlea eustachian tube

Question 32

what is the hearing organ

Answer 32

the ear

Question 33

what is the smallest bone in the body

Answer 33

stirrup in ear

Question 34

function of pinna

Answer 34

collect and channel vibrations

Question 35

function of auditory canal

Answer 35

carry vibrations to eardrum. lined with wax for protection

Question 36

function of eardrum

Answer 36

tightly stretched membranes that vibrate when vibrations hit it

Question 37

function of ossicles

Answer 37

amplify vibrations as they transmit them to inner ear

Question 38

function of Eustachian tube

Answer 38

opens and closes to maintain pressure and balance between outer and middle ear.

Question 39

function of cochlea (hearing)

Answer 39

vibrations converted to pressure waves at membrane in cochlea pressure waves stimulate receptors in cochlea which sends impulses to the brain impulses are carried to brain via cochlear nerve to interpret what we hear

Question 40

function of vestibular apparatus (balance)

Answer 40

the main parts of the vestibular apparatus are the semi circular canals the canals contain many receptors and a liquid called lymph when we move the liquid moves around the canals the receptors detect this movement from the movement of the lymph and send impulses to the cerebellum

Question 41

name a hearing disorder

Answer 41

glue ear

Question 42

what causes glue ear

Answer 42

too much sticky fluid in the middle ear preventing the ear drum and ossicle movement, hindering hearing

Question 43

treatments of glue ear

Answer 43

corrected by decongestants or grommets

Question 44

what is a grommet

Answer 44

a small narrow tube that allows air into the middle ear