Difference between revisions of "Motor Neuron"
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===About Motor Neurons=== | ===About Motor Neurons=== | ||
: '''Motor neurons''' [[transmit]] the [[Impulse (Biology)|electrical impulse]] from the [[Relay Neuron|relay neurons]] in the [[Spinal Cord|spinal cord]] to [[effector]]s such as [[muscle]]s or [[gland]]s. | : '''Motor neurons''' [[transmit]] the [[Impulse (Biology)|electrical impulse]] from the [[Relay Neuron|relay neurons]] in the [[Spinal Cord|spinal cord]] to [[effector]]s such as [[muscle]]s or [[gland]]s. | ||
| − | + | : The '''motor neuron''' receives an [[Impulse (Biology)|electrical impulse]] from the [[Relay Neuron|relay neuron]]. The [[Impulse (Biology)|impulse]] passes into the [[dendrite]]s, through the cell body, down the [[axon]] and to the [[synapse]] where the '''motor neuron''' connects to an [[effector]] (a [[muscle]] or a [[gland]]). | |
| + | {| class="wikitable" | ||
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| + | |[[File:MotorNeuron.png|center|400px]] | ||
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| + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a '''motor neuron'''. | ||
| + | |} | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
| − | |[[File: | + | |[[File:SpinalCordCrossSection.png|center|400px]] |
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| − | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of | + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the [[Reflex Arc|reflex arc]] showing the '''motor neuron''' in red. |
|} | |} | ||
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| + | ===References=== | ||
| + | ====Edexcel==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Motor neurones, pages 28, 29, GCSE Biology; The Revision Guide, CGP, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Motor neurones, pages 36, 37, GCSE Combined Science, Pearson Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Motor neurones, pages 46, 47, GCSE Biology, Pearson, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Motor neurones, pages 69-71, 73, GCSE Biology, CGP, Edexcel ''] | ||
Latest revision as of 19:19, 22 November 2019
Contents
Key Stage 4
Meaning
A motor neuron is a specialsed cell in the nervous system which transmits an electrical impulse sent from the central nervous system.
About Motor Neurons
- Motor neurons transmit the electrical impulse from the relay neurons in the spinal cord to effectors such as muscles or glands.
- The motor neuron receives an electrical impulse from the relay neuron. The impulse passes into the dendrites, through the cell body, down the axon and to the synapse where the motor neuron connects to an effector (a muscle or a gland).
 |
| A diagram of a motor neuron. |
 |
| A diagram of the reflex arc showing the motor neuron in red. |