Motor Neurone: Difference between revisions
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Motor neurons are cells in the brain and spinal cord that allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions. | Motor neurons are cells in the brain and spinal cord that allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions. | ||
Motor neurons | Motor neurons divided into either: | ||
# Upper motor neurons, which live in the main brain region and project into the brainstem and spinal cord. Normally, upper motor neurons transmit signals to lower motor neurons, directing them to make movements | |||
Normally, upper motor neurons transmit signals to lower motor neurons, directing them to make movements. The lower neurons then signal the muscles themselves, controlling normal movements | # Lower motor neurons, which reside in the brainstem or spinal cord and directly innervate muscles. The lower neurons then signal the muscles themselves, controlling normal movements | ||
When the signal is disrupted at some point in the pathway, it affects the ability of muscles to contract and move<ref>The Conversation [https://theconversation.com/what-we-know-dont-know-and-suspect-about-what-causes-motor-neuron-disease-79409 What we know, don’t know and suspect about what causes motor neuron disease] Available from;https://theconversation.com/what-we-know-dont-know-and-suspect-about-what-causes-motor-neuron-disease-79409 (accessed 19.12.2020)</ref>. | |||
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Revision as of 08:24, 19 December 2020
Original Editor - Lucinda hampton
Top Contributors - Lucinda hampton, Rucha Gadgil and Naomi O'Reilly
Introduction[edit | edit source]
Motor neurons are cells in the brain and spinal cord that allow us to move, speak, swallow and breathe by sending commands from the brain to the muscles that carry out these functions.
Motor neurons divided into either:
- Upper motor neurons, which live in the main brain region and project into the brainstem and spinal cord. Normally, upper motor neurons transmit signals to lower motor neurons, directing them to make movements
- Lower motor neurons, which reside in the brainstem or spinal cord and directly innervate muscles. The lower neurons then signal the muscles themselves, controlling normal movements
When the signal is disrupted at some point in the pathway, it affects the ability of muscles to contract and move[1].
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Resources[edit | edit source]
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References[edit | edit source]
- ↑ The Conversation What we know, don’t know and suspect about what causes motor neuron disease Available from;https://theconversation.com/what-we-know-dont-know-and-suspect-about-what-causes-motor-neuron-disease-79409 (accessed 19.12.2020)
