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the Nervous System

Kiana Staten

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2.specialized cells of the nervous system that produce myelin, communicate between cells, maintain the ionic environment, and nurtur the differentiation of neurons
5.specialized structures associated with peripheral ends of sensory neurons specific to detecting a particular sensation and triggering nerve impulses in response, which are transmitted to the central nervous system
7.neurological cells that line with ventricles of the brain
9.the brain and spinal cord
11.nerve cells
12.a type of neuroglia cell that surrounds an axon of a peripheral neuron, forming the neurilemmal sheath and myelin
15.the sequence of electrical changes that occurs in a portion of nerve cell membrane that is exposeed to a stimulus that exceeds the membrane's threshold
20.process of a neuron that recieves input from other neurons
22.muscles or glands that effect changes in the body
23.a type of neuroglial cell that forms myelin
25.carry nerve impulses away from the central nervous system to effectors
26.part of the nervous system outside of the central nervous system
27.the difference in electrical charge between the inside and the outside of an undisturbed cell membrane
1.a bundle of axons in the peripheral nervous system
3.part of the nervous system that controls the viscera
4.narrow gaps between Schwann cells
6.carry nerve impulses from receptors or sense organs towards the central nervous system.
8.a type of neuroglia cell that connects neurons to blood vessels
10.a nerve fiber that conducts a nerve impulse away from the neuron body cell
13.motor pathways of the peripheral nervous system that lead to the skin and skeletal muscles
14.stimulation level that must be exceeded to elicit a nerve impulse or muscle contraction
16.chemicals that axons secrete on effectors or other neurons
17.the functional connection between the axon of a neuron and the dendrite or cell ody of another neuron or the membrane of another cell type
18.a neurological cell that supports neurons and phagocytizes
19.portion of nerve cell that includes a cytoplasmic mass and a nucleus, and from which nerve fibers extend
21.fatty material that forms a sheathlike covering around some axons
24.masses of neuron cell bodies, usually outside the central nervous system

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