Embryology Quiz Actual Exam Questions and CORRECT Answers
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Course
Embryology
Institution
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 ...
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
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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