Title: The nervous system

What is this? How does it link to this man?

What are some ways this cell is specialised for its function?

LO: To describe the nervous system and how it worksLevel 6

Describe how a nerve impulse travels around the body and what body stimuli body receptors

respond toLevel 7

Explain how the nerve cell is adapted to its functionLevel 8

Explain how synapses work and how they allow impulses to travel and apply this information to

different diseases/drugs

The nervous system...

It has two main parts...

Central and Peripheral

It starts with a stimuli which is then recognised

by different receptors.

Explain to your partner what each of these things is!You must sum it up in NO more than 4 sentences!

This can be on a mini-whiteboard, in your book etc.

2 minutes!

Now you have 5 minutes to record what you’ve learnt!

Task 1.Make a table like this in your

book and fill it in Sense Organ Receptors

sensitive toEye

Ear

Skin

Tongue

Nose

Task 2. Write 2 sentences

explaining the difference between

the central and peripheral nervous

system!

Stretch: Where is this cell found and how is it

related to our topic?

A neurone is a nerve cell that carries an electrical impulse

There are lots of different types of neurone that take part in our response to a stimuli!

1. SENSORY NERVE

2. RELAY NERVE (central nervous

system – includes spine

and brain)

3. Motor Neurone SPINAL CORD

4. EFFECTOR

Stimulus Receptor Sensory Neurone Relay Neurone

Motor Neurone Effector Response

Effector:muscles of

the arm

Response:arm musclescontract and

hand withdrawsPain receptors

stimulated

Harmful stimulus from

a hot object

Rapid conduction of impulses through the reflex arc

Sensory neuron

Relay neuron

Motor neuron

Synapse

summary

IMPULSE Neurotransmitter

Neurotransmitter travels across the

synapse

RECEPTOR

CHEMICAL TRIGGERS

IMPULSE TO CONTINUE

Synapse- This is the gap between two nerves

• http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/nervesandhormones/thenervoussystemrev2.shtml

1. Label your picture to show how an electrical impulse is carried

2. Label your picture of a synapse to show how electrical impulses are carried across gaps in between nerves

Stretch: Endorphins are a chemical that make you feel happy

and a lot are released when you take some drugs.

Can you explain how these might get to the brain/

might be increased using what you’ve learnt today!?

Stretch: Stephen Hawking has motor neurone

disease, this means his motor neurones are not working correctly.

Can you suggest some of the symptoms/ what happens to someone

if they have this disease?

Choose a stretch activity of your choice

Keywords:Stimuli

ReceptorSensory Neurone

Relay NeuroneMotor Neurone

EffectorResponseSynapse

NeurotransmitterElectrical Impulse

PROGRESS CHECKBetween 4 people you have 7 blank pieces of

card!Can you write on them the 7 stages involved in

the response to a stimuli?You then must stand up, holding the cards in the

correct order!! Possible stimuli

choices:See child in roadTouch hot plate

Touch stinging nettlesTaste yummy food

For extra points include:1. The sensory organ you’d find the

receptor in2. The type of receptor

3. Your response e.g. Slam foot on brake!

LO: To describe the nervous system and how it worksLevel 6

Describe how a nerve impulse travels around the body and what body stimuli body receptors

respond toLevel 7

Explain how the nerve cell is adapted to its functionLevel 8

Explain how synapses work and how they allow impulses to travel and apply this information to

different diseases/drugs

There are 5 main topics covered today, these are on A4 sheets around

the room!1. The difference between central

and peripheral nervous system2. What nerve cells look like

3. How synapses work4. What stimuli, receptors and

sense organs are and the part they play in the nerve response

5. The seven stages of response to a stimuli

Sign your name next to the one

you’re MOST comfortable

with

Put your post-it on the one

you’re LEAST confident on

Sum up what you’ve learnt today in...

25 WORDS!

Now in 10 words...

Now in 3 words...