Senses

Question 1

Name all the senses and what body part detects it.

Answer 1

1. Touch-skin
2. Sight-eyes
3. Smell-nose
4. Taste-tongue
5. Hearing-ears

Question 2

What are the four sensations tongues can detect?

Answer 2

. Salty
. Sweet
. Sour
. Bitter

Question 3

How do we taste?

Answer 3

After foods are dissolved by saliva, taste buds on the tongue sent the messages to the brain.

Question 4

What are spells? How do we detect smells?

Answer 4

Smells are chemicals in the air that dissolve in the moist lining in our nose. It detects the smell with the olfactory nerve.

Question 5

What is flavour and how do we detect flavour?

Answer 5

Smell and taste both work together to create taste, 80% of taste is smell.

Question 6

Facts on TOUCH!

Answer 6

Our skin is our longest ORGAN, there are millions or nerve endings in our skin they can detect pain, pressure and temperature, there are some parts in our skin that are more sensitive than others.

Question 7

What does the retina do?

Answer 7

The retina captures light rays

And converts them into electrical pulses.

Question 8

What does the iris do?

Answer 8

The iris controls the light levels inside the eye.

Question 9

What does the lens do?

Answer 9

The lens helps to REFRACT light to focus on the retina.

Question 10

What does the pupil do?

Answer 10

The pupil controls the illumination in the eye and to improve the optical quality of the image on the retina.

Question 11

What does the cornea do?

Answer 11

The cornea helps shield the eye from harmful matter and controls/focuses the entry of light into the eye.

Question 12

That do the suspensory ligaments do?

Answer 12

The suspensory ligaments hold the lens in position and Change the focus on the lens.

Question 13

What does the Vitreous humours do?

Answer 13

The vitreous humours is a transparent jelly-like mass used to help keep the retina in place.

Question 14

What do the Ciliary muscles do?

Answer 14

The ciliary muscles adjust the shape of the lens in order to focus the eye.

Question 15

What does the optic nerve do?

Answer 15

The optic nerve transmits information to the brain.

Question 16

What is the blind spot?

Answer 16

The blind spot is where the optic nerve connects from the eye to the brain, you cannot see anything that is focused here.

Question 17

How do we hear?

Answer 17

• sound travels at 340m per second
• sound is made out of vibrations the way it vibrates is determined by how high a note is and how loud it is
• these vibrations are picked up by our ear drums, from there various parts of the ear change sound energy into electrical impulses which is sent to the brain allowing us to hear.

Question 18

How many sections are there in our ear? Name them.

Answer 18

There are 3 sections:

• the outer ear
• the middle ear
• the outer ear

Question 19

The outer ear:

Answer 19

The outer ear , as well as the middle ear, is filled with air. The outer ears main job is to funnel sound into the ear.

Question 20

Middle ear:

Answer 20

The middle ear begins with the ear drum, it is what first vibrates in response to sound.

Question 21

What makes the group called ‘ossicles’?

Answer 21

The ‘hammer’, the ‘anvil’ and the ‘stirrup’.

Question 22

The ‘stirrup’:

Answer 22

The ‘stirrup’ vibrates against the ‘oval window’ this causes vibrations to pass through the fluid filled tube called the ‘cochlea’.

Question 23

The ‘cochlea’:

Answer 23

The ‘cochlea’ passes the vibrations it gets to the auditory nerves which pass the information on to the brain.