So, I recently got interested in neuroscience and decided to learn more. Having had no formal training in neurobiology before, I just registered for this course on Coursera.
https://www.coursera.org/learn/neurobiology/
Let's see how it goes.
There's only one type of neurons that leaves the central nervous system (CNS) and goes directly to muscles, and that's the motor neuron.
There are a hundred thousand out of 200B neurons in the CNS.
The motor neurons are contained either in the brain stem or in the spinal chord. But, there are no motor neurons in the forebrain.
🔸 Motor neurons are a very special type of neuron. If they die, you can no longer move muscles.
🔸 The motor neurons are contained either in the brain stem or in the spinal cord. But, there are no motor neurons in the forebrain.
🔸 So the motor neurons in the brain stem move the face, move the mouth, move the larynx, and are responsible for speech and swallowing, facial expressions, things like that.
🔸 The motor neurons in the spinal cord are responsible for movements of all the arms, our legs, our trunk. All of our movement that we do with our body happens through the spinal cord.
