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Homeostasis #3

The Nervous System: Structures and Functions

StructureFunction
Neuron Nerve cell that conducts nerve impulses.
Sensory Neuron (afferent neuron) Carries imulses to the central nervous system.
Interneuron Carries impulses within the central nervous system.
Motor Neuron (efferent neuron) Carries impulses from the central nervous system to effectors.
Dendrite Projection of cytoplasm that carries impulses toward the cell body.
Axon Extension of cytoplasm that carries nerve impulses away from the cell body.
Myelin Sheath Insulated covering over the axon of a nerve cell; composed of schwann cells
Nodes of Ranvier Delicate membrane that surrounds the axon of some nerve cells.
Neurilemma Delicate membrane that surrounds the axon of some nerve cells.
Reflex Arc Neural circuit that travels through the spinal cord; provides a framework for a reflex action.
Created by: WisemanLeo
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