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Nervous Regulation

TermDefinition
Regulation Any process that modulates the frequency, rate or extent of a biological process
Irritability the excitatory ability that living organism have to respond to changes in their environment.
Impulse a pulse of electrical energy; a brief current.
Stimulus a thing or event that evokes a specific functional reaction in an organ or tissue.
Response any behavior of a living organism that results from an external or internal stimulus.
Receptor a protein which binds to a specific molecule.
Neuron a very specialized cell that forms the basis of the nervous system. They transmit signals throughout the body
Effector A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse.
Cell body the nucleus-containing central part of a neuron exclusive of its axons and dendrites that is the major structural element of the gray matter of the brain and spinal cord, the ganglia, and the retina.
Dendrites A short arm-like protuberance from a nerve cell
Convolution a form or shape that is folded in curved or tortuous windings
Axon a long, slender projection of a nerve cell, or neuron, in vertebrates, that typically conducts electrical impulses known as action potentials away from the nerve cell body.
Reflex arc a neural pathway that controls a reflex
Cerebrum The largest part of the vertebrate brain, filling most of the skull and consisting of two cerebral hemispheres divided by a deep groove and joined by the corpus callosum, a transverse band of nerve fibers
Cerebellum The portion of the brain that is in the back of the head, between the cerebrum and the brain stem. It is involved in the control of voluntary and involuntary movement as well as balance.
Medulla oblongata The base of the brain, which is formed by the enlarged top of the spinal cord. It directly controls breathing, blood flow, and other essential functions.
Central nervous system the part of the nervous system which in vertebrates consists of the brain and spinal cord, to which sensory impulses are transmitted and from which motor impulses pass out, and which coordinates the activity of the entire nervous system
Peripheral nervous system That portion of the nervous system that is outside the brain and spinal cord. connect the central nervous system to sensory organs, other organs of the body, muscles, blood vessels and glands.
Meninges The three membranes that cover the brain and spinal cord (singular: meninx). The outside meninx is called the dura mater, and is the most resilient of the three. The center layer is the arachnoid membrane and the thin innermost layer is the pia mater.
Neurotransmitter A chemical that is released from a nerve cell which thereby transmits an impulse from a nerve cell to another nerve, muscle, organ, or other tissue.
Created by: sdwyer5125
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