beh225_appendix_c - Axia College Material Appendix C Brain...

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Axia College Material Appendix C Brain Response of Behavior BEH 225
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Part I Note: Parts II and III follow below, complete all three. Run Multimedias 2.3 and 2.4 o Go to the Web site www.prenhall.com/morris . o Click text: Psychology: An Introduction (12 th ed.) o Click “2” on the select a chapter tool bar. o Click Live!Psych on the left hand menu. o Select 2.3 and 2.4. 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. <Insert Response Here> BEH 225
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The brain is made up of billions of neurons, individual cells that are the smallest unit of the nervous system. They transmit electrochemical impulses; nerve impulses or action potential, from one neuron to another, these chemicals transmit messages through dendrites. With the message transferring down the axom to the terminal buttons releasing neurotransmitters, sending the message on to the next neuron. The point at which one neuron sends the message on to the next neuron is called the synapse. The synaptic cleft is the gap in which one neuron releases the message from the presynaptic neuron and transmits it to the postsynaptic neuron. The tiny synaptic vesicles, filled with neurotransmitters, are pushed through and released from the presynaptic neuron once the action potential has reached its point; the receptor sites on the postsynaptic neuron absorb the neurotransmitters like a hand and glove, they must match or the impulse is not absorbed. There are hundreds of thousands neurotransmitters created by the human body. Acetylcholine plays a vital role in the body; helping with arousal, memory, attention, and motivation. People with Alzheimer’s Disease seem to have loss of memory and severe language issues; this has been linked with a decrease in the Acetylcholine. Dopamine affects neuron receptors associated with voluntary movement, learning, memory, and emotions (2005). Parkinson’s Disease causes muscle spasms, tremors, and increasing muscle rigidity, has been linked to a decrease in brain cells that produce Dopamine. Another is Serotonin which is found in many tissues located throughout the body;
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This note was uploaded on 09/14/2010 for the course AXIA COLLE All taught by Professor Unk during the Spring '10 term at University of Phoenix.

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beh225_appendix_c - Axia College Material Appendix C Brain...

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