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19 Cards in this Set

  • Front
  • Back
What is include in the Nervous System?
*All the neural tissue of the body - neuron & neuroglia
*Basic unit = neuron
What does the nervous system provide?
*The nervous system provides swift, brief responses to stimuli.
What are the divisions of the nervous system?
*CNS(Central Nervous System)
*PNS(Peripheral Nervous System)
What does the CNS(Central Nervous System) contain?
*The brain and spinal cord.
What does the PNS(Peripheral Nervous System) contain?
*The neural tissue outside the CNS(Central Nervous System)
What type of division brings sensory information from receptors?
*Afferent division.
What type of division carries motor commands to effectors?
*Efferent division.
What is include in efferent division?
*Efferent division includes somatic nervous system and autonomic nervous system.
How many types of neuroglia are in the CNS?
What are the four types of neuroglia found in the CNS?
*Ependymal, Astrocytes, Oligodendrocytes, and Microglia.
What are ependymal cells?
*Related to cerebrospinal fluid.
What are astrocytes?
*Largest and most numerous.
What are oligodendrocytes?
*Myelination of CNS axons.
What are Microglia?
*Phagocytic cells.
What two types of neuroglian are in the PNS?
*Satellite cells and schwann cells.
What are satellite cells?
*surround neuron cell bodies within ganglia.
What are schwann cells?
*Ensheath axons in the PNS.
What makes up a neuron structure?
*Cell body, dendrites, and axon.
What is a cell body?
*cell body contains mitochondria, lysosomes, a Golgi apparatus, chromatophilic substance