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SENSE ORGANS

Total questions: 60

Worksheet time: 21mins

Name
Class
Date
1.

How many sense organs are there in human body?

a)

4

b)

5

c)

3

d)

6

2.

What is the function of the auditory canal?

a)

to block sound waves that could be harmful

b)

to direct sound waves to the eardrum

c)

to detect sensations of movements

d)

to equalize air pressure between the outer and middle ear

3.

What is the function of the auditory nerve?

a)

to transmit the nerve impulse to the cerebrum

b)

to carry the nerve impulse to the semi-circular canals

c)

to carry the nerve impulse to the Eustachian tube

d)

to carry the nerve impulse to the brain stem

4.

In which part of the ear is the eardrum located?

a)

in the outer ear

b)

in the inner ear

c)

in the middle ear

5.

In which part of the ear is the cochlea located?

a)

in the inner ear

b)

in the middle ear

c)

in the outer ear

6.

The Eustachian tube connects the middle ear to.....

a)

the larynx

b)

the pharynx

c)

the mouth

d)

the brain

7.

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to _________.

a)

the auditory canal

b)

the cochlea

c)

the semi-circular canals

d)

the ossicles

8.

Where does HEARING (interpreting the nerve impulses) take place?

a)

in the outer ear

b)

in the middle ear

c)

in the inner ear

d)

in the brain

9.

Which structure of the ear is pointed by #1?

a)

ear drum

b)

pinna

c)

cochlea

d)

semi circular canals

10.

Which structure of the ear is pointed by #2?

a)

ear drum

b)

auricle (pinna)

c)

auditory canal

d)

semi circular canals

11.

Which structure of the ear is pointed by #3?

a)

ear drum

b)

auricle (pinna)

c)

vestible

d)

semi circular canals

12.

Which structure of the ear is pointed by #4?

a)

ear drum

b)

Eustachian tube

c)

semi circular canals

d)

ossicles

13.

Which structure of the ear is pointed by #5?

a)

ear drum

b)

Eustachian tube

c)

vestible

d)

semi circular canals

14.

Which structure of the ear is pointed by #6?

a)

cochlea

b)

ossicles

c)

vestible

d)

semi circular canals

15.

Which structure of the ear is pointed by #7?

a)

cochlea

b)

ossicles

c)

vestible

d)

semi circular canals

16.

Which structure of the ear is pointed by #8?

a)

cochlea

b)

pinna (auricle)

c)

vestible

d)

semi circular canals

17.

What is the function of the Eustachian tube?

a)

to equalize air pressure between the outer and middle ear

b)

to equalize air pressure between the outer and inner ear

c)

to equalize air pressure between the middle and inner ear

18.

Which part of the ear allows balance when in motion and detects rotary (turning) sensations?

a)

the vestible

b)

the cochlea

c)

the semi-circular canals

d)

the ossicles

19.

Which part of the ear allows balance when in static position and detects sensations of standing up straight or upside-down?

a)

the vestible

b)

the cochlea

c)

the semi-circular canals

d)

the ossicles

20.

Which part of the nose contains the sensory receptors for the sense of smell?

a)

the nasal cavity

b)

the olfactory epithelium

c)

the olfactory nerve

d)

the olfactory bulb

21.

Which of the following are the sensory receptors for the sense of taste?

a)

papillae

b)

taste buds

c)

taste epithelium

d)

retina

22.

Why can you not taste food correctly when you have a bad cold?

a)

the taste buds of the tongue are covered in mucus

b)

the olfactory epithelium is swollen and covered in mucus

c)

the sensory receptors stop functioning when you are sick

d)

the nerve impulse cannot reach the cerebrum

23.

Which part is #1?

a)

sclera

b)

cornea

c)

retina

d)

lens

24.

Which part is #2?

a)

iris

b)

cornea

c)

retina

d)

lens

25.

Which part is #3?

a)

pupil

b)

iris

c)

cornea

d)

lens

26.

Which part is #5?

a)

choroid

b)

iris

c)

lens

d)

retina

27.

Which part is #6?

a)

sclera

b)

cornea

c)

choroid

d)

lens

28.

Which part is #7?

a)

blind spot

b)

optic nerve

c)

fovea

d)

retina

29.

What does the optic nerve do?

a)

It transmits nerve impulses from the retina to the cerebrum.

b)

It helps the eye focus to make a clear image.

c)

It receives light and sends it to the brain.

d)

It transmits light rays to the retina.

30.

What is the function of the iris?

a)

It transmits light rays to the retina.

b)

It helps the eye to insure focus (clear image).

c)

It sends messages to the brain.

d)

It regulates how much light enters the eye.

31.

What is the function of the sclera?

a)

It protects the eye and gives it its shape.

b)

It helps the eye to focus and make a clear image.

c)

It controls the amount of light that enters the eye,

d)

It transmits light rays to the retina.

32.

This layer contains photoreceptors that react to light by producing nerve impulses.

a)

Cornea

b)

Lens

c)

Retina

d)

Pupil

33.

The pupil is located at the center of the...

a)

sclera

b)

iris

c)

choroid

d)

retina

34.

The blind spot is created by the

a)

retina that cannot see in dim light

b)

optic nerve leaving the eye

c)

lens that cannot adjust well to light

d)

retina cells that are burnt by too much light

35.

This part of the eye carries the nerve impulses from your eye to the part of your brain that controls vision.

a)

cornea

b)

lens

c)

optic nerve

d)

retina

36.

In dim light, your pupil will...

a)

get larger

b)

get smaller

c)

will not change

d)

change color

37.

Which part of the eye focuses light onto the retina?

a)

lens

b)

Pupil

c)

Optic Nerve

d)

vitreous humor

38.

In order for your brain to process the light waves that enter your eye, what must your eye do to those waves before sending them to the brain?

a)

Nothing, the light waves just get sent to the brain.

b)

Light waves must be converted into stimuli by the eye.

c)

Light waves must be converted into nerve impulses by the eye.

d)

Light waves must be refracted by the eye.

39.

What part of the eye has the highest concentration of rods and cones?

a)

optic nerve

b)

fovea

c)

blind spot

d)

iris

40.

Type of photoreceptor that is active in bright light and perceives color?

a)

fovea

b)

cones

c)

rods

d)

optic nerve

41.

Type of photoreceptor that functions in low light and creates shades of gray.

a)

retina

b)

rods

c)

cones

d)

lens

42.

Which part is #4?

a)

choroid

b)

iris

c)

lens

d)

sclera

43.

Which part is #8?

a)

blind spot

b)

optic nerve

c)

cornea

d)

fovea

44.

Which part is #9?

a)

blind spot

b)

optic nerve

c)

cornea

d)

retina

45.

Which part is #10?

a)

aqueous humor

b)

vitreous humor

c)

cornea

d)

lens

46.

Which part is #11?

a)

aqueous humor

b)

vitreous humor

c)

cornea

d)

lens

47.

The colorful part of the eye, controls light going into the pupil

a)

lens

b)

iris

c)

sclera

d)

retina

48.

back of the eye, takes light and changes it to nerve signals

a)

lens

b)

sclera

c)

optic nerve

d)

retina

49.

carries messages from the eye to the brain

a)

lens

b)

vitreous humor

c)

retina

d)

optic nerve

50.

gel substance that gives the eye shape

a)

optic nerve

b)

iris

c)

vitreous humor

d)

retina

51.
What part of the eye holds the lens in place?
a)
cornea
b)
ciliary muscles
c)
pupil
d)
retina
52.
what is the iris
a)
the colored part of the eye that controls the size of the pupil
b)
Transparent jellylike fluid that fills the eye and refracts light.
c)
Sends messages picked up by the retina to the brain 
d)
Hole passes different amounts of light
53.
This part of the eye has photoreceptors called rods and cones.  They help us to see color and see at night.  It is called:
a)
optic nerve
b)
brain
c)
retina
d)
cornea
54.
This part of the eye allows light into the eye.  
a)
pupil
b)
optic nerve
c)
sclera
d)
lens
55.
The cells responsible for color vision in vertebrates are called
a)
rod cells
b)
cone cells
c)
bipolar cells
d)
cupula cells
56.
The small bones located in the middle ear, known collectively as the ossicles, include:
a)
tympanum, oval and round windows
b)
pinna, vestibule and eustachian
c)
malleus, incus, and stapes
d)
ossicles I, II and III
57.

skin is a combination of

a)

Dermis

b)

Sub-cutaneous

c)

Epidermis

d)

All of the above

58.

which is the outermost layer of skin with hairs,pores,nails ?

a)

Dermis

b)

Sub-cutaneous

c)

Epidermis

d)

None of the above

59.

which layer of the skin is the layer of fat and blood?

a)

Sub-cutaneous

b)

Dermis

c)

Epidermis

d)

All of the above

60.

The layer of the skin which has blood vessels,glands,nerve endings (called tangoreceptors) is

a)

Epidermis

b)

Dermis

c)

Sub-cutaneous

d)

None of the above

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