I've always been interested in the nervous system becasue it is such a unique system within the body. Nerves span the entire human body, receiving and sending out signals that allow us to move, feel, think, see, etc. The neurons of the nervous system communicate with one another across synapses, which are the spaces between the neurons. Neurotransmitters travel across these synapses and bind to receptors on the next neuron, effectively passing on the message. The central nervous system is especially important. It includes the spine and brain, which integrate signals from all of our senses. The brain sends incoming signals to different areas of the brain to be interpreted and sent back out to the body. Multiple signals are interpreted at once for all of the things we do. There is also a lot of internal communication we are unaware of. It's amazing how we are able to live our lives, moving, eating, seeing, experiencing, feeling, thinking, and so much more, because our nervous system is able to integrate all the signals that intake and output. The simple ability to think about moving my hand and actually being able to move it however I want is amazing. The speed at which our body communicates internally is impossibly fast. One thing that I have yet to know about is how emotions play into the central nervous system. When someone is sad or in love or mad, how does that show in our brains, and why? I've always been curious if there is a clearcut explanation for emotional feelings. Is there a reason some people are more sensitive than others or more empathetic? Is there an explanation within the nervous system for why some people have anger management issues or an inclination to cry?
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