Appendix C Part I

Topics: Brain, Cerebrum, Cerebral cortex Pages: 2 (549 words) Published: August 2, 2013
Part I

Note: Parts II and III follow below, complete all three.

Write a 350- to 700-word response to the following: Explain the communication process of neurons in the brain. List some common neurotransmitters and describe their effect on behavior.

There are 2 neurons afferent neurons these carry messages to the central nervous system. Efferent neurons carry messages from the central nervous system. Neurons communicate through voltage changes. This can sometimes lead to quick action reaction sequence of voltage alterations. An example would be when you touch something hot and you pull your hand away immediately. One cell changes its voltage and the next cell detects this, and it does the same thing, and this continues on to each cell. The do this by releasing neurotransmitters. Neurotransmitters are chemicals that are released by the neurons. Neurotransmitters are how cells “talk” to one another. Neurotransmitters play a huge role in the regulation of emotions and moods along with many other things. Some common neurotransmitters are serotonin, dopamine, noradrenalin, acetylcholine, and norepinephrine. The neurotransmitters actions vary greatly depending on what structure. Low serotonin production is associated with depression. Low dopamine causes problems with cognition memory. Nonadrenalin is associated with flight or fight response. Acetycholine is associated with plasticity and excitability. Norepinephrine affects alertness, and is very important in regulating long term memory and learning. All of these neurotransmitters have certain functions but they also affect how people behave. For example low serotonin can cause a person to feel depressed and not want to be around anyone. They may not want to eat or they may binge. The person may withdraw from things that they love. Neurotransmitters can also cause anxiety and fear. I am on medication right now for depression and anxiety. I now know why I am the way I am. I now know that I have a chemical...
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