2. • Label a neurone using key words e.g. axon,
mylein sheath, dendrites
• Describe the role of a neurone/nerve cell in
the nervous system. Name three examples of
neurone
• Explain how the neurone is adapted to its
function
Learning Outcomes
3. Think – Pair – Share
Elicit
How is this cell the
same as an animal cell?
Different to an animal
cel?
4. The brain can respond to touch, smell or taste stimuli in just 0.1 seconds, but
sound and vision take longer.
How fast are electrical signals?
Nerve impulses
travel at up to 320
mph and take just
0.02 seconds to
reach the brain.
Initiate
Engage
5. What are neurones?
Neurones are specialized cells that conduct electrical impulses
through the body.
nerve fibre
A nerve is a bundle of many nerve fibres
enclosed within a protective sheath. Nerve
fibres are the long axons of neurones together
with any associated tissues.
nerve
6. Make a model neurone
- work in groups of 4
- use the resources available to create a poster and
model
- you will be judged according to our success criteria:
1) Scientific accuracy of model and explanation of how it
is adapted for its function
2) Aesthetic appearance
3) Teamwork
Explore
7.
8. Team number
1 2 3 4 5 6 7 8
Scientific
accuracy
Aesthetic
appearance
Teamwork
Total
3 = excellent 2 = good 1 = satisfactory
9. What do neurones look like?
The axons of most neurones are wrapped in an insulating lipid layer called the
myelin sheath. Why is this important?
Thin projections called dendrites extend from the cell body and connect with other
neurones, allowing electrical impulses to pass from one to the other.
Neurones are elongated cells consisting of a cell body and long, thin axon.
myelin
sheath
axon
cell
body
dendrites
Explain
10. What are sensory neurones?
Sensory neurones transmit messages from sense receptors, such as the eye or
nose, to the brain or spinal cord.
cell body
nerve impulse from
sense organ
nerve impulse to
CNS
11. What are motor neurones?
Motor neurones transmit messages from the brain and spinal cord to the
muscles and glands.
cell body
muscle
13. Label the neurone- Summarising what
you have learnt. Write down how it is
adapted to its function
Elaborate-demonstrate learning
14. Dendrite
Nucleus
Nerve
Ending
Axon
Cell
Membrane
Cytoplasm
The cytoplasm is shaped
into a long axon to transmit
electrical impulses between
central nervous system and
effector
Fatty sheath acts as an
electrical insulator of
the axons, and speed
up transmission of
electrical impulses.
Branched
endings
make
connections
with other
neurons or
effectors.
Self assess
17. • Label a neurone using key words e.g. axon,
mylein sheath, dendrites
• Describe the role of a neurone/nerve cell in
the nervous system. Name three examples of
neurone
• Explain how the neurone is adapted to its
function
Learning Outcomes
Evaluate
