Embryo: Dev of Nervous Sys

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HLW
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52385
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Embryo: Dev of Nervous Sys
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2010-11-30 20:33:24
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embryo
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Embryo: Dev of Nervous Sys
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  1. The nervous system is derived from the
    ectoderm
  2. Closure of the neural tube begins at the ____ and extends to the ___ and ___
    • Cervical Region
    • Rostral and Caudal Neuropore
  3. Neural Crest Cells contribute to the development of (6):
    • Ganlgia (S & A)
    • Neurolemmal Cells
    • Mesenchymal Cells of the head
    • Chromaffin Cells of the adrenal medulla
    • Melanoblasts
    • Pia Mater & Arachnoid
  4. Epithelial Lining of the Neural Tube
    Neuroepithelium
  5. Neuroepithelium forms (2):
    • Neuroblasts
    • Gliablast
  6. Neuroblast cells form (2):
    • Grey Matter (cell bodies=>Mantle)
    • White Matter (processes =>Marginal)
  7. Gliablasts differentiate into (2):
    • Astrocytes
    • Oligodendrocytes
  8. Microglia develop from:
    MESODERM
  9. What marks the division btw dorsal and ventral halves of the neural tube
    Sulcus Limitans
  10. Dorsal half of neural tube=
    Alar Plate
  11. Ventral Half of neural tube=
    Basal Plate
  12. In the notochord, sensory neurons are located in which plate
    Alar Plate
  13. In the notochord, motor neurons are located in which plate
    Basal Plate
  14. In the notochord, autonomic neurons are located in which plate
    Lateral Plates
  15. When the neuroepithelium ceases to proliferate, it forms...
    the ependyma (w/in the central canal)
  16. Union of the ventral and dorsal roots => spinal nerves
  17. Efferent Root=
    Ventral Root (M)
  18. Afferent Root=
    Dorsal Root (S)
  19. Caudal end of the spinal cord tapers to form the ___
    Conus Medullaris
  20. The Conus Medullaris + Caudal Sinal nerves=
    Cauda Equina
  21. Primary Vesicles of the developing brain (rost-caud)
    • Prosencephalon
    • Mesencephalon
    • Rhombencephalon
  22. Where is the cervical flexure located?
    btw. brain and spinal cord
  23. Prosencephalon =>
    • Telencephalon
    • Diencephalon
  24. Mesencephalon =>
    Mesencephalon
  25. Rhomnecephalon =>
    • Metencephalon
    • Myelencephalon
  26. Telencephalon => (2)
    • Olfactory Bulb
    • Cerebral Hemisphere
  27. Diecephalon => (3)
    • Epithalamus
    • Hypothalamus
    • Thalamus
  28. Mesencephlon => (2)
    • Corpora Quadrigemina
    • Cerebral Peduncles
  29. Metencephalon => (2)
    • Pons
    • Cerebellum
  30. Myelencephalon =>
    Medulla Oblongata
  31. Telencephalon Ventricle
    Lateral
  32. Diencephalon Ventricle:
    3rd Ventricle
  33. Mesencephalon Ventricle:
    Cerebral Aqueduct
  34. Metenchephalon Ventricle
    4th Ventricle
  35. Myencephalon Ventricle
    4th Ventricle
  36. Dura Mater is derived from
    Mesoderm *
  37. Arachnoid and Piamater is derived from
    Neural Crest Cells
  38. Pontine Flexure is located btw. the ___ & ___
    Metencephalon & Myelencephalon *
  39. Cranial Flexure is located where?
    Midbrain
  40. Cervical Flexure is located where?
    Btw the developing brain and spinal cord
  41. Spinal Bifida results from...
    Failure of the CAUDAL neuropore to fuse
  42. Myeloschisis results from...
    Failure of the middle neuropore to fuse
  43. Cerebella Hypoplasia redults from...
    panleucopenia
  44. Anencephalus results from...
    Failure of the ROSTRAL neuropore to fuse
  45. Hydrocephalus occurs when
    CSF can't exit through ventricles
  46. Adenohypophysis develops from the
    Stomodeal Ectoderm (Diencephalon)
  47. Neurohypophysis develops from the
    Neural Ectoderm (Infundibulum/floor of the diencephalon)
  48. The neurohypophysis remains connected to the
    hypothalamus
  49. The Adrenal Cortex Develops from the
    Intermediate Mesoderm *
  50. The Adrenal Medulla (chromaffin cells) develop from
    Neural Crest Cells

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