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| Absolute Refactory Period |
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Definition
| a period of time during which an organ or cell is incapable of repeating a particular action |
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| the nerve impulse that travels down the axon and triggers the release of neurotransmittersinto a synapse. |
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| a feature of an organism that has been shaped by natural selection so that it enhances the fitness of its possessor |
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| employed to demonstrate the influence of genetics (as opposed to environment) by comparing the correlations between adopted children and either their biological parents or adoptive parents on a measurable trait |
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| the communication of the senses experienced by the body are conveyed to the central nervous system by afferent neurons for processing |
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| 1.A substance that initiates a physiological response when combined with a receptor |
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Definition
| a substance that hinders the activity of a neurotransmitter, through reducing the amount available. |
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| Autonomic Nervous System (ANS) |
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Definition
| 1.The part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes |
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| portion of a neuron between the cell body and the terminals which provides the signal pathway for a nerve impulse. |
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