| Term | Definition |
|---|
| homeostasis | maintaining body temperature |
| brain | nervous system, to control and coordinate the mental and physical actions. |
| cerebral palsy | difficulty in control of the voluntary muscles |
| neuron | a specialized, impulse-conducting cell |
| neurotransmitter | several chemical substances, as epinephrine or acetylcholine, that transmit nerve impulses across a synapse to a postsynaptic element, as another nerve, muscle, or gland. |
| synapse | a region where nerve impulses are transmitted and received, |
| receptor | an end organ, of sensory or afferent neurons, specialized to be sensitive to stimulating. |
| effector | organ or cell that carries out a response to a nerve impulse. |
| response | any behavior of a living organism that results from an external or internal stimulus |
| spinal cord | the cord of nerve tissue extending through the spinal canal of the spinal column |
| stimulus | a signal to which an organism responds |
| adrenaline | a hormone that gives the body extra energy |
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