DH 1350 Quiz 1: Chapter 3

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DH 1350 Quiz 1: Chapter 3
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2014-12-10 20:48:07
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DH 1350 Quiz Chapter
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DH 1350 Quiz 1: Chapter 3
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DH 1350 Quiz 1: Chapter 3
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  1. Sperm + Egg = _____
    zygote
  2. Because of the ongoing process of mitosis and secretion of fluid by the cells within the morula, the _____ becomes a vesicle known as a blastocyst.
    zygote
  3. Which is not one of the periods of Prenatal Development?  
    Fetal   
    Primordium  
    Embryonic   
    Preimplantation
    primordium
  4. __________ is the time frame for the embryonic period.
    Week 3-8   
    Week 4-12   
    Week 2-8  
    Week 1-3
    2-8
  5. The blastocyst consists of which layers?  
    Trophoblast and Cytoblast   
    Embryoblast and Trophoblast  
    Hypoblast and Cytoblast   
    Embryoblast and Hypoblast
    Embryoblast and Trophoblast
  6. The blastocyst must travel from the________________ to the uterine wall.
    fallopian tube
  7. By the end of the first week of prenatal development, the blastula (blasotcyst) stops traveling and undergoes:  
    disintegration   
    migration   
    amniocentesis   
    implantation
    implantation
  8. The first period, the preimplantation period of prenatal development, takes place during the _____ week after conception.
    first
  9. An ectopic pregnancy occurs when:  
    The blastocyst implants anywhere other than the uterine wall  
    More than one sperm fertilizes the egg  
     The cervix doesn't stay contracted and cannot hold the weight of the baby   
    The chromatids do not completely separate during meiosis
    The blastocyst implants anywhere other than the uterine wall
  10. Embryonic folding occurs in the _______ week.
    4th
  11. Histodifferentiation is the development of different ____________
    tissue types
  12. The first physiological process involved during prenatal development is the process of _____ , which is the action of one group of cells on another that leads to the establishment of the developmental pathway in the responding tissue.
    induction
  13. Which of the following processes involves embryonic cells becoming distinct structurally and functionally?  
    Morphogenesis   
    Maturation   
    Differentiation 
    Proliferation
    diff
  14. Which of the following processes involves controlled cellular growth?  
    Maturation   
    Morphogenesis   
    Proliferation  
    Differentiation
    proliferation
  15. The bilaminar embryonic disc consists of which layers?  
    Epiblast and Hypoblast  
    Trophoblast and Epiblast   
    Embryoblast and Trophoblast   
    Hypoblast and Cytoblast
    Epiblast and Hypoblast p. 25
  16. What serves as initial nourishment for the embryonic disc?  
    Yolk sac 
    Caudal   
    Amniotic cavity   
    Mesoderm
    Yolk sac p. 24
  17. The Trilaminar Embryonic Disc has three distinct layers, please list them (in no specific order):
    Ectoderm Mesoderm Endoderm p. 26
  18. The lymphatic system develops from which of the following embryonic tissues?  Ectoderm   Endoderm   Mesoderm
    mes
  19. Which of the following resembles a bum?  
    Caudal end   
    Mesenchyme   
    Primitive streak  
    Cephalic end
    Primitive streak p. 24
  20. The cloacal membrane will give rise to:  
    The primitive mouth of the embryo   
    The terminal end of the digestive tract/anus 
    The beginning of the digestive tract   
    The coccyx bone of the spine
    The terminal end of the digestive tract/anus p. 25
  21. Which of these does not come from Endoderm?  
    Digestive System Linings   
    Liver Cells   
    Epidermis 
    Respiratory System Linings
    Epidermis p. 27
  22. Please list two (2) teratogens(that we discussed in class)   that can cross through the placenta and give rise to congenital malformations:
    alcohol drugs
  23. An example of trisomy is _____ syndrome, which has an extra chromosome number 21 present after meiotic division.
    down
  24. During which week of prenatal development does the neural plate differentiate?  fifth week   seventh week   fourth week   second week   third week
    third
  25. From which embryonic layer is mesoderm derived?  neuroectoderm   endoderm   hypoblast layer   epiblast layer
    epi
  26. Neural crest cells migrate from which embryonic structures?  
    neural folds  
    frontonasal process   
    stomodeum   
    hypoblast layer   
    first branchial arch
    neural folds Third Week, page 25
  27. The folding of the embryo causes: 
     endoderm to be on the outside of the mesoderm   
    ectoderm to be on the inside of endoderm   
    endoderm to be on the inside of the embryo  
    mesoderm to be on the outside of the ectoderm
    endoderm to be on the inside of the embryo Fourth Week, 28 is the page number

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