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12 terms

Anatomy Chapter 7# 7 nervous sysI

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Cutaneous sense organs
Sensory receptors found in the skin, which are specialized to detect temperature, pressure changes, and pain
Schwann cells
Specialized cells that myelinate the fibers of neurons found in the PNS
Synapse
Junction or point of close contact between neurons
Tract
Bundle of nerve processes inside the CNS
Association neuron
Neuron, serving as part of the conduction pathway between sensory and motor neurons
Nodes of Ranvier
Gaps in a myelin sheath
Ganglion
Collection of nerve cell bodies found outside the CNS
Efferent neuron
Neuron that conducts impulses away from the CNS to muscles and glands
Proprioceptors
Sensory receptors found in muscle and tendons that detect their degree of stretch
Stimuli
Changes occuring within or outside the body, that affect nervous system functioning
Afferent neuron
Neuron that conducts impulses toward the CNS from the body periphery
Neurotransmitters
Chemicals released by neurons that stimulate other neurons, muscles, or glands