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SSCT Intro to A&P C8

SSCT Chapter Anatomy & Physiology Chapter 8 Nervous System

QuestionAnswer
CNS Central Nervous System
Central Nervous System brain & spinal cord
PNS Peripheral Nervous System
Peripheral Nervous System all nerves
ANS Autonomic Nervous System
Dendrites conduct impulses to cell body of neuron
Axon conducts impulses away from cell body of neuron
Sensory Neurons conduct impulses to the spinal cord and brain
Motor Neurons conduct impulses away from brin and spinal cord to muscles and glands
interneurons conduct impulses from sensory neurons to motor neurons
Astocytes star-shaped cells that anchor small blood vessels to neurons - blood-brain-barrier (BBB) associated with certain neurotransmitters
Microglia small cells that move in inflamed brain tissue carrying on phagocytes - repair damage
oligodendrocytes form myelin sheaths on axons in the CNS
Schwann cells form myelin sheaths of axons in the PNS
White matter tissue composed primarily of myelinated axons (nerves or tracts)
Gray Matter tissue composed primarily of cell bodies and unmyelinated fibers
Endoneurium surrounds individual fibers within a nerve
Perineurium surrounds a group (fascicle) of nerve fibers
Epineurium surrounds the entire nerve
Created by: dmdisme