Comparative Test 3 (Set 10)

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mc166589
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115311
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Comparative Test 3 (Set 10)
Updated:
2011-11-09 10:06:51
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Comparative anatomy
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Comparative anatomy lecture test number three.
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  1. _____ acquaints organism with its external environment and stimulates the organism to orient itself favorably in that environment.
    Nervous system
  2. _____ participates in the maintenance of internal homeostasis and stores knowledge.
    Nervous system
  3. What is the structural/ functional unit of the nervous system?
    Neuron
  4. From what does the neuron originate from?
    Ectoderm
  5. The nervous system is divided into two groups which are the _____ and the _____.
    • Central nervous system
    • Peripheral nervous system
  6. The Central nercous system includes the _____ and the _____ .
    • Brain
    • Spinal cord
  7. The peripheral nervous system includes what?
    nerves extending between the CNS and the receptors and effectors in the rest of the body.
  8. The neuron is made up of what four basic parts?
    • Cell body
    • Dendrites
    • Axons
    • Telodendria
  9. The cell body is the _____ of the neuron.
    Trophic segment
  10. What is the roll of dendrites in the neuron?
    The are the receptive segment.
  11. What is the roll of the axon in the neuron?
    It is the conductive segment.
  12. What is the roll of the telodendria in the neuron?
    These are the transmissive segments.
  13. _____ typically are carried only in one direction accross _____ between neurons by transmitter substances.
    • Nerve Impulses
    • Synapses
  14. Neurotransmitters that heelp nerve impulses travel are _____ and _____.
    • Acetylcholine
    • Noradrenaline
  15. What are the three major catagories of neurons?
    • Sensory (Afferent)
    • Motor (Efferent)
    • Internuncial neurons
  16. Where are the cell bodies of sensory neurons located?
    In peripheral ganglia
  17. Where are the cell bodies of motor neurons located?
    In the central gray matter
  18. Internuncial neurons are confined to what?
    The CNS, in between other neurons

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