Senses

Question 1

What does the skin contain receptors for?

Answer 1

The skin contains receptors for pain, touch and
temperature.

Question 2

What are the taste receptors?

Answer 2

Sweet
Sour
Unami
Salty
Bitter

Question 3

What role does the nose have in detecting senses?

Answer 3

The nose contains receptors that respond to particular
chemicals in the air.

Question 4

What is the function of the sclera?

Answer 4

White of the eye that is tough and doesn’t let light through

Question 5

What is the function of the conjunctiva?

Answer 5

Clear thin membrane covering the front of the eye that
lubricates and protects. If it gets inflamed its called
conjunctivitis

Question 6

What is the function of the cornea?

Answer 6

Transparent part of the sclera which is curved which bends light towards the retina.

Question 7

What is the function of the choroid?

Answer 7

Layer between Sclera and Retina. It Contains blood vessels to nourish the eye.

Question 8

What is the function of the aqueous humour?

Answer 8

Watery substance that gives the front of the eye its shape

Question 9

What is the function of the vitreous humour?

Answer 9

Gel like substance that maintains the shape of the eye.

Question 10

What is the function of the iris?

Answer 10

Coloured part of the eye which controls the amount of light entering the eye

Question 11

What is the function of the lens?

Answer 11

Changes shape to focus light on the retina.

Question 12

What is the function of the pupil?

Answer 12

It controls the amount of light entering the eye

Question 13

What is the function of the retina?

Answer 13

Rods And cones are located here

Question 14

What do rods do?

Answer 14

Detect black and white colours and work in dim light

Found all over the retina

Question 15

What do cones do?

Answer 15

Detect colours and work in bright light

Found mostly at the fovea

Question 16

What is the blind spot?

Answer 16

The point where nerve fibres leave the eye is called the blind
spot as there are no rods and cones to receive light.

Question 17

What is the function of the pinna?

Answer 17

Channels vibrations into the auditory canal.

Question 18

What is the function of the auditory canal?

Answer 18

Carries vibrations to the eardrum.

Question 19

What is the function of the eardrum?

Answer 19

Vibrates when vibrations reach it and separates the outer ear from the middle ear

Question 20

What is the function of the ossicles?

Answer 20

3 small bones that transmit
and amplify vibrations from
the outer ear to inner ear.

Question 21

What is the function of the Eustachian tube?

Answer 21

Equalises pressure on either side of the eardrum.

Question 22

What is the function of the cochlea?

Answer 22

Vibrations arrive at the cochlea from the stirrup, pass through
the oval window and create waves of pressure in the fluid in
the cochlea (lymph).

Hairs attached to sensory cells are stimulated, with and
impulse travelling along the organ of corti and onto the brain
via the auditory nerve.

Question 23

What is the function of the semi-circular canals?

Answer 23

The semi-circular canals contain a lymph fluid. They also
contain receptor cells which are stimulated depending on the
movement of the fluid.

These receptors send impulses via the vestibular nerve to
the cerebellum which can then interpret the position of the
head in space.

Question 24

What are the ossicles bones?

Answer 24

(Hammer, Anvil & Stirrup)

Question 25

Name a hearing disorder and how it can be treated?

Answer 25

Disorder: Glue ear

Sticky fluid collects in the middle ear obstructing

Can be treated with grommets which are inserted to allow air into the middle ear which forces the fluid down the eustachian tube.