Embryologic derivatives (just for fun)

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Author:
certainlygirl
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224691
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Embryologic derivatives (just for fun)
Updated:
2013-06-22 22:01:21
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USMLE embryology
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  1. anterior pituitary (adenohypophysis)
    surface ectoderm
  2. lens of eye
    surface ectoderm
  3. epithelial linings of oral cavity
    surface ectoderm
  4. epithelial linings of sensory organs of ears
    surface ectoderm
  5. olfactory epithelium
    surface ectoderm
  6. epidermis
    surface ectoderm
  7. salivary, sweat, and mammary glands
    surface ectoderm
  8. posterior pituitary (neurohypophysis)
    neuroectoderm
  9. CNS neurons
    neuroectoderm
  10. oligodendrocytes, astrocytes
    neuroectoderm
  11. ependymal cells (lining the ventricles of the brain)
    neuroectoderm
  12. pineal gland
    neuroectoderm
  13. retina
    neuroectoderm
  14. spinal cord
    neuroectoderm
  15. autonomic nervous system (ANS)
    neural crest
  16. dorsal root ganglia
    neural crest
  17. cranial nerves
    neural crest
  18. celiac ganglion
    neural crest
  19. melanocytes
    neural crest
  20. chromaffin cells of adrenal medulla
    neural crest
  21. parafollicular (C) cells of thyroid
    neural crest
  22. Schwann cells
    neural crest
  23. pia and arachnoid
    neural crest
  24. bones of the skull
    neural crest
  25. odontoblasts (dental pulp)
    neural crest (this CREST toothpaste)
  26. aorticopulmonary septum
    neural crest
  27. Gut tube epithelium and derivatives (e.g. lungs, liver, pancreas, thymus, parathyroid, thyroid follicular cells)
    endoderm
  28. lungs
    endoderm
  29. liver
    endoderm
  30. pancreas
    endoderm
  31. thymus
    endoderm
  32. parathyroid
    endoderm
  33. thyroid follicular cells
    endoderm
  34. muscle, bone, connective tissue
    mesoderm
  35. serous linings of body cavities (e.g. peritoneum)
    mesoderm
  36. spleen
    mesoderm

    spleen is derived from foregut mesentery
  37. cardiovascular structures
    mesoderm
  38. lymphatics
    mesoderm
  39. blood
    mesoderm
  40. bladder
    mesoderm
  41. urethra
    mesoderm
  42. vagina
    mesoderm
  43. eustachian tube
    mesoderm
  44. kidneys
    mesoderm
  45. adrenal cortex
    mesoderm
  46. skin dermis
    mesoderm
  47. testes, ovaries
    mesoderm
  48. Mesodermal defects = VACTERL
    Vertebral defects, Anal atresia (abnormally closed), Cardiac defects, Tracheo-Esophageal fistula, Renal defects, Limb defects (bone and muscle)

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