The Sensory System

Question 0

What do our sense organs do?

Answer 0

provide us with information about our surroundings

Question 1

What does our sensory system do?

Answer 1

Our sensory system makes us aware of what is happening in and around us

Question 2

What does our nervous system do?

Answer 2

It processes the information sent to it by the sense organs and allows us to respond in a suitable manner.

Question 3

What is a stimulus?

Answer 3

Anything in our surroundings which causes us to take action.

Question 4

What is a response?

Answer 4

The action we take as reaction to a stimulus.

Question 5

Give an example of a stimulus and it’s response

Answer 5

the sound of a car horn is a stimulus. A response might be to jump out of the way of the car.

Question 6

What is our sensory system made up of?

Answer 6

5 senses

Question 7

Each sense is associated with…

Answer 7

A different sense organ

Question 8

What does the central nervous system consist of?

Answer 8

The brain and the spinal cord

Question 9

What is the brain?

Answer 9

a complex structure containing millions of nerve cells

Question 10

What is another word for nerve cells?

Answer 10

neurons

Question 11

What does the spinal cord contain?

What does the rest of the nervous system contain?

Answer 11

Many nerves which take messages to and from the brain

Nerves which run to and from the central nervous system

Question 12

what do nerves carry messages from?

what does this allow our sense organs to do?

Answer 12

sense organs to the brain

gather information from our surroundings

Question 13

How do messages travel along nerves?

Answer 13

as electrical impulses

Question 14

What happens when the brain receives information from the sense organs?

Answer 14

It makes sense of the message, memorises it and decides on the correct response.

Question 15

What happens after the brain decides on a correct response

By doing this, what does the brain cause us to do?

Answer 15

It sends a message along different nerves to a muscle (or a group of muscles).
Respond to a stimulus.

Question 16

Give the sense organ that correlates to these senses. 
sight            smell
hearing
taste
touch

Answer 16

sight - eyes
hearing - ears
taste - tongue
touch - skin
smell - nose

Question 17

what is a neuron?

Answer 17

a nerve cell

Question 18

What are the two types of nerve cells?

Answer 18

motor and sensory

Question 19

What is the function of sensory nerves?

Answer 19

They carry messages to the brain or central nervous system

Question 20

sensory neurons carry messages from the sense organs __________ the ___________

Answer 20

towards

brain

Question 21

Sensory neurons make our central nervous system …

Answer 21

aware of a stimulus

Question 22

What do motor nerves do?

Answer 22

Carry messages away from the brain or central nervous system to a muscle

Question 23

Motor nerves cause us to….

Answer 23

carry out a response