Nervous System

Question 1

What are the 5 senses?

Answer 1

Sight
Hearing
Taste
Touch
Smell

Question 2

What does the eye consist of?

Answer 2

Sclera
Cornea
Iris
Pupil
Lens
Retina

Question 3

What are the different parts of the ear?

Answer 3

Outer ear
Middle ear
Inner ear

Question 4

What do these parts consist of?

Answer 4

Outer ear:
Ear lobe (pinna)
Auditory canal

Middle ear:
Eardrum
Ossicles

Inner ear:
Semi-circular canals
Cochlea
Auditory nerve

Question 5

How do we hear?

Answer 5

1)sound waves move to the inside of the ear
2)the sound waves cause movements in the middle ear.
3)the movement causes waves in the cochlea.the hair cells are stimulated and send impulses to the brain
4)the brain interprets it and identifies what is heard

Question 6

What is the function of the tongue?

Answer 6

Has taste buds on the surface
Plays an important role in speech,swallowing food and chewing
(It is a movable muscular organ)

Question 7

What are the four basic tastes?

Answer 7

Sweet
Salt
Bitter
Sour

Question 8

What is the fifth taste?

Answer 8

Umami,which means “nice” in Japanese

Question 9

What are the functions of skin?

Answer 9

Skin is the biggest organ of the body.
It protects internal organs against the environment
Controls body temperature
Senses touch

Question 10

How does the sense of touch work?

Answer 10

1)the cell receptors in the skin are stimulated
2)the receptors surrounding the nerve ends are stimulated
3)stimulus is converted to an impulse and is sent to the brain
4)the brain interprets the impulse and identifies what is felt

Question 11

What is the function of a nose?

Answer 11

Breathing
Important for sense of taste(it captures soluble chemical stimuli)
For smell

Question 12

How do we smell?

Answer 12

1)odour molecules dissolve I’m the moisture of the mucous glands
2)a stimulus occurs in the receptors
3)stimulus converted to an impulse and is sent to the brain
4)the brain interprets the impulse and identifies what you smell