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outline ch3 - Katherine Arellano AP Psych-A Ms Hermosura...

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Katherine Arellano AP Psych-A Ms. Hermosura October 8, 2008 http://cwx.prenhall.com/bookbind/pubbooks/morris5/chapter2/deluxe.html Intro: This section is based on the roots of thoughts, feelings and actions. It also goes into depth on the nervous system and endocrine system. Neurons: The messengers: Neurons are the messengers within the body which carries messages from the brain or spinal cord to the glands and muscles. Neurons have negatively charged ions within the neuron and it has positively charged ions on the outside of it, moreover, if an incoming message is strong enough, the charge can change and become depolarized. The Synapse: Synaptic transmission is the communication of the neurons. The synaptic vesicles enable the neurotransmitter molecules to be released and later attach to a receptor site. Synapses and Drugs: Drugs play an influence on whether the effects of neurotransmitters are increased or decreased, also effecting if they actually are being used. The brain has plasticity which means that it can physically and chemically be changed through experience. Central Nervous System: The central nervous system is divided into the brain and the spinal cord. In addition, the central nervous system is connected to the peripheral nervous system which in turn connects the central nervous system to the rest of the body.
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