Difference between revisions of "Neuron"
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===Adaptations of Nerve Cells=== | ===Adaptations of Nerve Cells=== | ||
− | : '''Nerve Cells''' have an elongated shape to send electrical | + | : '''Nerve Cells''' have an elongated shape to send electrical [[Impulse (Biology)|impulses]] more quickly. |
: '''Nerve Cells''' have branches called [[dendrite]]s to link up to other '''nerve cells'''. | : '''Nerve Cells''' have branches called [[dendrite]]s to link up to other '''nerve cells'''. | ||
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===Meaning=== | ===Meaning=== | ||
[[Neuron]]s are [[Specialised Cell|specialised cells]] in the [[Nervous System|nervous system]] which [[Transmit|transmits]] electrical [[Impulse (Biology)|impulses]] around the body. | [[Neuron]]s are [[Specialised Cell|specialised cells]] in the [[Nervous System|nervous system]] which [[Transmit|transmits]] electrical [[Impulse (Biology)|impulses]] around the body. | ||
+ | |||
+ | ===Adaptations of Neurons=== | ||
+ | : '''Neurons''' have an elongated [[axon]] to send electrical [[Impulse (Biology)|impulses]] more quickly. | ||
+ | : '''Neurons''' have branches called [[dendrite]]s to link up to other '''neurons'''. | ||
+ | : The [[axon]] of a [[neuron]] is covered in a [[Myelin Sheath|myelin sheath]] which acts as an [[Electrical Insulator|electrical insulator]] to maintain the strength of the [[Impulse (Biology)|impulse]] as it passes along the [[axon]]. | ||
+ | |||
+ | {| class="wikitable" | ||
+ | |- | ||
+ | |[[File:NeuronDiagram.png|center|400px]] | ||
+ | |- | ||
+ | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a [[neuron]]. | ||
+ | |} |
Revision as of 10:28, 12 November 2018
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.
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.
A diagram of a neuron. |