Neuroanatomy Intro to the Nervous system

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glparker86
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256720
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Neuroanatomy Intro to the Nervous system
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2014-01-15 17:25:12
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Leture
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  1. What are the three germinal layers ?
    • Ectoderm 
    • Mesoderm 
    • Endoderm
  2. What do the three germ layers make ?
    • Ectoderm - Inner tubes
    • Mesoderm - Connective Tissues 
    • Endoderm- brain and skin
  3. What are the 4 primary Section of the Neural tube called ?
    • Prosencephalon
    • Mesencephalon
    • Rhombencephalon
    • spinal cord
  4. What are the Secondary structures of the Neural tube ?
    • Telencephalon
    • Diencephalon
    • Mesencephalon
    • Metencephalon
    • mylencephalon
    • Spinal Portion
  5. What ventricles do the secondary structures of the Neural tube make ?
    • Telencephalon-Lateral Ventricles
    • Diencephalon-Third Ventricle
    • Mesencephalon-Central aqueduct
    • Metencephalon-Fourth Ventricle
    • mylencephalon-Fourth and Central Canal
    • Spinal Portion-Central Canal
  6. What is the function of a Neuron  ? How they reproduce ?
    The produce impulses to transfer information

    They don't they are amitotic
  7. What do astrocytes , oligodentrites , ependymocytes , microglia , satelite cells , and Schwann cells ?
    • astrocytes - blood supply for neurons
    • Microglia - are phagocytic / reparative 
    • oligodentrites - produce myelin sheath for CNS
    • Ependymal cells - epithelial lining of the brain , ventricles and central canal of spinal cord , and make CSF
    • Schwann cells - myelination of the PNS
  8. What is a neurolemna ?
    It is the cell membrane of the Schwann cell
  9. What are nodes of Ranvier ? What is there function ?
    • The spaces between sheath cells. 
    • They increase the impulse speed 
    • Decrease energy of Na+/K+ pump
  10. What is multiple sclerosis ?
    It is the destruction of myelin sheath in the CNS.
  11. What is the NEJ , NMJ , and the NGJ ?
    • Neuroeffector junction 
    • Neuromuscular Junction
    • Neuroglandular Junction
  12. What does the perikaryon mean ?
    It means around the DNA and RNa
  13. What makes up a Neuron ?
    • Nucleus 
    • Ribosomes
    • Rough ER
    • Mitochondria
    • Neurofibrils
  14. What do the dendrites of the neuron do ? Is it myelinated ?
    • Bring depolarization toward the cell body.
    • It is not myelinated
  15. What makes up the Neuron processes ?
    Dendrites  and Axon
  16. What does the Axon of the Neuron do ? Is it myelinated ?What is the axon "Hillock"
    • It takes action potentials away from the body.
    • It can be myelinated or not
    • It is the connector for the axon to the neural body
  17. What is the telodendria of the Neuron ?
    It is the synaptic end bulb
  18. Describe these type of Neurons ?
    Unipolar 
    Bipolar 
    Multipolar Neuron
    Multipolar Interneuron
  19. What is Efferent or Afferent ?
    • Efferent = Motor
    • Afferent = sensory
  20. Name the areas ?
  21. Slide 28 Left off

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