Difference between revisions of "Neuron"
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| − | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a [[neuron]]. | + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a [[Motor Neuron|motor '''neuron''']]. |
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Revision as of 09:55, 8 June 2019
Contents
Key Stage 3
Meaning
A nerve cell is a specialised cell in animals which transmits electrical impulses around the body.
Adaptations of Nerve Cells
- Nerve Cells have an elongated shape to send electrical impulses more quickly.
- Nerve Cells have branches called dendrites to link up to other nerve cells.
About Nerve Cells
- All nerves in the body are made of nerve cells.
- Nerve cells are specially adapted to send electrical signals quickly.
- Many nerve cells grouped together make nerve tissue.
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Key Stage 4
Meaning
Neurons are specialised cells in the nervous system which transmits electrical impulses around the body.
Adaptations of Neurons
- Neurons have an elongated axon to send electrical impulses more quickly.
- Neurons have branches called dendrites to link up to other neurons.
- The axon of a neuron is covered in a myelin sheath which acts as an electrical insulator to maintain the strength of the impulse as it passes along the axon.
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| A diagram of a motor neuron. |
About Neurons
- Neurons join together to form nerves.
- The point where two neurons meet is called a synapse.
- At the synapse between two neurons the electrical impulse must be transmited across the gap.
There are three different types of neuron you should know: