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2010-07-19 12:42:00

definitions and questions for clerkship
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  1. aldosterone
    enhances Na+ reabsorption at the collecting duct of the kidney
  2. aneuploidies
    abnormal numbers of chromosomes that may occur as a consequence of abnormal meiotic division of chromosomes in gamete formation
  3. antidiuretic hormone aka arginine vasopressin
    acts to conserve water by increasing the permeability of the collecting duct of the kidney
  4. blastocyst
    at the 8 - 16 cell stage, the blastomere develops a central cavity and becomes a blastocyst

    the cells on the outer layer differentiate to become trophoblasts
  5. blastogenic period
    the first 4 weeks of human development
  6. blastomere/morula
    in 2 to 4 days after fertilization, a fertilized oocyte undergoes a series of cellular divisions and becomes a blastomere or morula
  7. conception
    the fertilization of an ovum by sperm
  8. decidua
    the name given to the endometrium or lining of the uterus during pergnancy and the tissue around the ectopically located fertilized ovum
  9. embryonic period
    begins with the folding of the embryonic disk (which is formed from the inner cell mass) in week 2 of development
  10. fetus
    the term given to the conceptus after 8 weeks of life; it has a crown-rump length of 30 mm and a gestational age of 10 weeks. The fetal period continues until birth
  11. gestational age
    the time calculated from the last menstrual period and by convention exceeds the developmental age by 2 weeks
  12. oocyte
    the primitive ovum before it has completely developed
  13. primary oocyte
    the oocyte at the end of the growth period of oogonium and beforet he first maturation division has occurred
  14. secondary oocyte
    the larger of the two oocytes resulting from the first maturation division
  15. oogenesis
    formation and development of the ovum
  16. oogonium
    the primordial cell from which an oocyte originates
  17. organogenesis
    occurs between 4 and 8 weeks after conception
  18. polar body
    the small cell produced in oogenesis resulting from the divisions of primary and secondary oocytes
  19. preembryonic period
    the first 2 weeks after fertilization
  20. pregenesis
    the time period between the formation of germ cells and the union of sperm and egg
  21. puerperium
    the period of up to 6 weeks after childbirth during which the size of the uterus decreases to normal
  22. residual volume
    the volume of air that is inhaled and exhaled during normal quiet breathing
  23. tidal volume
    the volume of air that is inhaled and exhaled during normal quiet breathing
  24. total lung capacity
    the volume of gas contained in the lungs after a maximal inspiration
  25. vital capacity
    the volume of gas that is exhaled from the lungs in going from total lung capacity to residual volume
  26. zona pellucida
    inner, solid, thick membranous envelope of the ovum (vitelline memebrane, zona radiata)