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

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