ch2 key terms psyc - Psychology Key Terms Chapter 2 Key...

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Psychology Key Terms Chapter 2 Key Terms action potential the release of the neural impulse consisting of a reversal of the electrical charge within the axon. adrenal glands endocrine glands located on top of each kidney that secrete over 30 different hormones to deal with stress, regulate salt intake, and provide a secondary source of sex hormones affecting the sexual changes that occur during adolescence. agonists chemical substances that mimic or enhance the effects of a neurotransmitter on the receptor sites of the next cell, increasing or decreasing the activity of that cell. all-or-none referring to the fact that a neuron either fires completely or does not fire at all. amygdala brain structure located near the hippocampus, responsible for fear responses and memory of fear. antagonists chemical substances that block or reduce a cell’s response to the action of other chemicals or neurotransmitters. association areas areas within each lobe of the cortex responsible for the coordination and interpretation of information, as well as higher mental processing. autonomic nervous system (ANS) division of the PNS consisting of nerves that control all of the involuntary muscles, organs, and glands. axon tube-like structure that carries the neural message to other cells. axon terminals branches at the end of the axon. Broca’s aphasia condition resulting from damage to Broca’s area, causing the affected person to be unable to speak fluently, to mispronounce words, and to speak haltingly.
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central nervous system (CNS) part of the nervous system consisting of the brain and spinal cord. cerebellum part of the lower brain located behind the pons that controls and coordinates involuntary, rapid, fine motor movement. cerebral hemispheres the two sections of the cortex on the left and right sides of the brain. cerebrum the upper part of the brain consisting of the two hemispheres and the structures that connect them. computed tomography (CT) brain-imaging method using computer-controlled X-rays of the brain. corpus callosum thick band of neurons that connects the right and left cerebral hemispheres. cortex outermost covering of the brain consisting of densely packed neurons, responsible for higher thought processes and interpretation of sensory input. deep lesioning
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This note was uploaded on 10/23/2009 for the course PSYCH 101 taught by Professor Nahad during the Fall '07 term at Ivy Tech Community College.

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ch2 key terms psyc - Psychology Key Terms Chapter 2 Key...

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