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Embryology Quiz Actual Exam Questions and CORRECT Answers $9.99   Add to cart

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Embryology Quiz Actual Exam Questions and CORRECT Answers

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  • Embryology

Embryology Quiz Actual Exam Questions and CORRECT Answers Embryology - CORRECT ANSWER- study of prenatal development Prenatal development consists of three distinct periods - CORRECT ANSWER- the preimplantation period, the embryonic period, and the fetal period What periods make up the first ...

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  • September 14, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Embryology
  • Embryology
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MGRADES
Embryology Quiz Actual Exam Questions
and CORRECT Answers
Embryology - CORRECT ANSWER✔✔- study of prenatal development



Prenatal development consists of three distinct periods - CORRECT ANSWER✔✔- the pre-
implantation period, the embryonic period, and the fetal period


What periods make up the first trimester of pregnanacy - CORRECT ANSWER✔✔- the pre-
implantaiton period and the embryonic period


What period comprises the last two trimesters - CORRECT ANSWER✔✔- the fetal period


It is important for dental professionals to understand what in prenatal development -
CORRECT ANSWER✔✔- to understand the major events of prenatal development to
understand better the development of the structures of face, neck, and oral tissue and
underlying relationships among these structures


Primordium - CORRECT ANSWER✔✔- earliest indication of a part or an organ during
prenatal development, all structures have this


Know teratogens involved in congenital malformations - CORRECT ANSWER✔✔-
drugs(tetracycline, ethanol, lithium), chemical(methylmercury, polychlorinated biphenyls),
infections (rubella virus, herpes simplex virus, human immunodeficiency virus, syphilis
microbe), radiation(high levels of ionizing type)


Preimplantation period of prenatal development - CORRECT ANSWER✔✔- period of the
unattached conceptus, takes place during the first week


Zygote - CORRECT ANSWER✔✔- union of ovum and sperm forms a fertilized egg



During fertilization, the final stages of what occurs - CORRECT ANSWER✔✔- meiosis,
diploid chromosomes, half from ovum, half from sperm

, After fertilization, zygote under goes - CORRECT ANSWER✔✔- mitosis, individual cell
division(cleavage)


Morula - CORRECT ANSWER✔✔- after intial cleavage, solid ball of cells



Blastocyte - CORRECT ANSWER✔✔- zygote becomes a vesicle, also known as blastula,
after ongoing process of mitosis, many cells


When does the blastocyte stop traveling - CORRECT ANSWER✔✔- end of the first week,
then undergoes implantation, embedded in prepared endometrium


Trophoblast layer - CORRECT ANSWER✔✔- after 7 days of cleavage, blastocyst consists
of a layer of peripheral cells


Embryoblast - CORRECT ANSWER✔✔- small inner mass of embryonic cells



Trophoblast gives rise to - CORRECT ANSWER✔✔- important prenatal support tissues



Embryoblast layer gives rise to - CORRECT ANSWER✔✔- to embryo during next prenatal
period


Down syndrome - CORRECT ANSWER✔✔- trisomy 21, extra 21 chromosome after
meiotic division, at risk of periodontal disease and fewer and abnormally shaped teeth, arched
palate, poor use of tongue muscles


Cell becomes zygote after how many hours: - CORRECT ANSWER✔✔- 12-24



Cell divides into two cells after how many hours - CORRECT ANSWER✔✔- 30 hours



Cell divides into 4 cells after how many hours - CORRECT ANSWER✔✔- 40-50 hrs

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