The Sensory System Flashcards Preview

New Biology > The Sensory System > Flashcards

Flashcards in The Sensory System Deck (24)
Loading flashcards...
0
Q

What do our sense organs do?

A

provide us with information about our surroundings

1
Q

What does our sensory system do?

A

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

2
Q

What does our nervous system do?

A

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

3
Q

What is a stimulus?

A

Anything in our surroundings which causes us to take action.

4
Q

What is a response?

A

The action we take as reaction to a stimulus.

5
Q

Give an example of a stimulus and it’s response

A

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

6
Q

What is our sensory system made up of?

A

5 senses

7
Q

Each sense is associated with…

A

A different sense organ

8
Q

What does the central nervous system consist of?

A

The brain and the spinal cord

9
Q

What is the brain?

A

a complex structure containing millions of nerve cells

10
Q

What is another word for nerve cells?

A

neurons

11
Q

What does the spinal cord contain?

What does the rest of the nervous system contain?

A

Many nerves which take messages to and from the brain

Nerves which run to and from the central nervous system

12
Q

what do nerves carry messages from?

what does this allow our sense organs to do?

A

sense organs to the brain

gather information from our surroundings

13
Q

How do messages travel along nerves?

A

as electrical impulses

14
Q

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

A

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

15
Q

What happens after the brain decides on a correct response

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

A

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

16
Q
Give the sense organ that correlates to these senses. 
sight            smell
hearing
taste
touch
A
sight - eyes
hearing - ears
taste - tongue
touch - skin
smell - nose
17
Q

what is a neuron?

A

a nerve cell

18
Q

What are the two types of nerve cells?

A

motor and sensory

19
Q

What is the function of sensory nerves?

A

They carry messages to the brain or central nervous system

20
Q

sensory neurons carry messages from the sense organs __________ the ___________

A

towards

brain

21
Q

Sensory neurons make our central nervous system …

A

aware of a stimulus

22
Q

What do motor nerves do?

A

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

23
Q

Motor nerves cause us to….

A

carry out a response