Embryo Clicker Q's 1

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Author:
HLW
ID:
36774
Filename:
Embryo Clicker Q's 1
Updated:
2010-09-22 23:03:32
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Embryo
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Clicker Q's
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  1. Wall of aorta had prominance of
    Elastic Fibers
  2. T/F Veins gave smaller lumen and thicker walls
    False
  3. Post Capillary Veuoles are found in
    Lymphoid Organs
  4. Capillaries in Kidneys are
    Porous
  5. Capillaries in Liver are
    Sinusoidal
  6. Serum =
    Plasma - Proteins
  7. PCV in dogs =
    45%
  8. Buffy Coat=
    WBC's and Platelets
  9. Largest RBC is found in:
    Smallest is found in:
    • Largest: Dog
    • Smallest: Goat
  10. Variable RBC size
    Anistocytosis
  11. Poikilocytosis is normal in
    Goats
  12. Rouleaux in normal in
    Horses (and Cats)
  13. Animal most suseptable to Heinz bodies
    Cats (acetomenaphin, onion)
  14. Average life span of RBCs in Dogs:
    Cats:
    • Dogs: 120 days
    • Cats: 75 Days
  15. Pedominant cells in horses
    Neutrophils
  16. Neutrophils remain in circulation for
    ~12 hours
  17. Function of neutrophils:
    Phagocytosis
  18. What cells increase during allergic Rxn and Parasitic infection
    Eosinophils
  19. Macrophages are derived from
    Monocytes
  20. Eosinophils differ in appearance in what species?
    • Horses (granulated)
    • Greyhounds (vaculated)
  21. T-cells are produced in the
    Thymus
  22. Heterophils are present in
    Birds
  23. Histamine is released by
    Basophils
  24. Plasma Cells are released from
    B-Lymphocytes
  25. Majority of lymphocytes in circulation are:
    T-Lymphocytes
  26. Thymus is what type of lymphoid organ?
    Primary
  27. Stroma of thymus is formed by
    Epithelial Reticular Cells
  28. Stroma of Spleen is formed by
    Reticular CT
  29. Hassal's Corpuscles are part of
    Thymus (in medulla)
  30. Histamine is released by
    Basophils
  31. PALS are part of
    White Pulp (spleen)
  32. Thymus and Spleen have
    Efferent lymph vessels
  33. Birds do not have
    lymph nodes
  34. Organ that filters bood
    Spleen
  35. Where does filtration take place in the Spleen
    Marginal Zone
  36. Peyer's Patches are found in the
    ileum (MALT)
  37. Hemal Nodes are found in
    Cattle
  38. Epuithelium in cloacal bursa
    pseudostratified
  39. Embryology is AKA
    Developmental Biology
  40. Gametogenesis -> implantation
    pre-embryonic
  41. Embryology dealing with malformations
    tetraology
  42. evolutionary history of a species
    phylogeny
  43. Development that occurs though interaction of various parts
    Epigenetic theory (notochord -> CNS
  44. Primordial Germ Cells originate in
    Wall of Yolk Sac
  45. 1 Spermatogonia => __ Spermatozoa
    4
  46. Head of Sperm is formed by
    Nucleus
  47. Cap of sperm is formed by
    Golgi Body
  48. Tail of sperm is formed by
    cenriole
  49. 1 oogonium => ___ ovum
    1 ovum (+ 2 polar bodies that are discarded)
  50. What structure is ovulated in canines
    primary oocyte
  51. Cats and rabbits are
    induced ovulators
  52. Sperm remain in F genital tract of birds for
    1+ month
  53. Viability of ovum, after ovulation, is usually
    1 day
  54. Removal of glycoprotein Coat and seminal plasma protein from plasma membrane that overlies acrosomal region
    Capacitation
  55. Acrosomal Reaction
    Release of enzymes to penetrate ovum
  56. What prevents polyspermy
    Zona Reaction
  57. % Infertility of freemartins
    92%
  58. In most animals, fertilization takes place in the...
    In dogs...
    • Most: Ampulla of uterine tube
    • Dogs: Infundibula
  59. When 1+ sperm fertilize ovum
    polyspermy
  60. Superfecundation
    • 1+ ovum and 1+ sperm
    • (dogs)
  61. Gestation length in cows
    115 days
  62. T/F Subsequent cleavages ar always perpindicular to previous division
    True
  63. Notochord Develops from
    Primitive Node
  64. Notochord remains in adult as
    Nucleus Propolsus
  65. Mesoderm developes from
    Primitive Streak
  66. Cavity btw two layers of mesoderm (splanchnic and somato mesoderm)
    Coelom
  67. Somites develop from
    Paraxial Mesoderm
  68. Formation of 3 germ layers
    Gastrulation
  69. Vertebral Column develops from
    Paraxial Mesoderm
  70. Formation of Neural Ectoderm is induced by
    notochord
  71. Somatopleure =
    • ECTOderm + Somatic Mesoderm
    • ******
  72. Splanchnopleure =
    ENDOoderm + Splanchnic Mesoderm
  73. Amnion is formed by
    Extraembryionic Somatopleure
  74. Vetelline Refers to
    Yolk Sac
  75. Allantois develops from
    Extraembryonic Splanchnopleure
  76. What is used to esimate age of embryo
    • Crown Rump Length
    • Somites

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