Embryology
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- 1.The prechordal plate will be the location of:
- A.
Heart
- B.
Stomach
- C.
Mouth
- D.
Spinal cord
- 2.Which one of these is not formed by the neural crest
- A.
The CNS
- B.
Pigment cells
- C.
Adrenal gland medulla
- D.
Peripheral ganglia
- 3.The process by which the bilaminar disc is converted into trilaminar disc is:
- A.
Neurolation
- B.
Gastrulation
- C.
Implantation
- D.
Folding
- 4.The cells by which the embryo will be nourished are:
- A.
Cytotrophoblast
- B.
Amnion
- C.
Decidual
- D.
Blastomeres
- 5.The part involved in the formation of blood is:
- A.
Notochord
- B.
Somites
- C.
Mesoderm
- D.
Allantois
- 6.The fluid will start to accumulate within the morula :
- A.
5 DAF
- B.
10 DAF
- C.
8 DAF
- D.
2 DAF
- 7.The epiblast is formed of:
- A.
Squamous cells
- B.
Cuboidal cells
- C.
Columnar cells
- D.
Mucous cells
- 8.After the blastocystic cavity is surrounded by exocoelomic membrane it is called:
- A.
Primary umbilical vesicle
- B.
Exocoelomic cavity
- C.
Secondary umbilical vesicle
- D.
Amniotic cavity
- 9.First spontaneous movement of the embryo is in:
- A.
10th week
- B.
8th week
- C.
6th week
- D.
13-16 week
- 10.The fetal period is:
- A.
The period from implantation till the 8th week
- B.
The period from 2nd-3rd week
- C.
The period from 9th week till birth
- D.
The period from 7th -11th week
- 11.To diagnose any abnormality in the fetal heart we use:
- A.
Fetal monitoring
- B.
Ultrasonography
- C.
Chorionic villus sampling
- D.
Cell culture
- 12.All of these can result in a variation in human species except:
- A.
Crossing-over
- B.
Implantation
- C.
Mutations
- D.
Mingling of chromosomes from two different individuals.
- 13.The blastocyst is called (later blastocyst) after:
- A.
Implantation
- B.
Fertilization
- C.
Hatching
- D.
Embedding
- 14.Extraembryonic Splanchnic mesoderm covers:
- A.
Amniotic cavity
- B.
Umbilical vesicle
- C.
Bilaminar disc
- D.
Trilaminar disc
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