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RECALLS : ANATOMY > Evals 3 : Embryo 1-3 Weeks Development > Flashcards

Evals 3 : Embryo 1-3 Weeks Development Flashcards

1
Q

On what day of development does the cytotrophoblast syncytiotrophoblast appear?

a. day 7
b. day 9
c. day 8
d. day 5
e. day 11

A

c. day 8

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2
Q

Which among the following produces hCG at week 2 development?

a. Syncytiotrophoblast
b. Cytotrophoblast
c. Yolk sac
d. Corpus luteum
e. Placenta

A

a. Syncytiotrophoblast

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3
Q

When the spermatozoon enters the oocyte, the following happens the egg, EXCEPT
a. none of the choices
b. the oocyte completes its first meiotic division
c. the zona pellucida changes its composition
d. the egg is activated metabolically by the activating factor from the spermatozoon
e. a second polar body is formed

A

b. the oocyte completes its first meiotic division

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4
Q

How many percent of the sperm cells reaching the vagina would be able to reach and enter the cervical part of the uterus?

a. 1
b. 10
c. 3
d. 7
e. 5

A

a. 1

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5
Q

On what day of development are the vessels of the placenta to the uterus formed?

a. Day 11 and 12
b. Day 22 and 23
c. Day 13
d. Day 14
e. Day 19

A

c. Day 13

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6
Q

Which among the following refers to cells that became smaller after each cleavage division?

a. Morula
b. Blastocyst
c. Blastocele
d. Compact cells
e. Blastomeres

A

e. Blastomeres

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7
Q

Which of the following refers to normal internal organs positioning?
a. Situs inversus
b. Situs solitus
c. None of the choices
d. Heterotaxy
e. Situs ambiguous

A

b. Situs solitus

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8
Q

Which among the following statements is a result of fertilization?

a. Chromosomal sex is determined
b. None of the choices
c. The zygote has a chromosome combination same with the parents
d. An X-carrying egg produces a female embryo
e. Haploid number of chromosomes is restored

A

a. Chromosomal sex is determined

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9
Q

5 hydroxytryptamine is known as what neurotransmitter?

a. Serotonin
b. Any of the choices
c. Dopamine
d. Epinephrine
e. Norepinephrine

A

a. Serotonin = 5 HYDNOXYTRYPTAMIME

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10
Q

ES cells have the potential to cure the following conditions, EXCEPT

a. Alzheimer disease
b. Aplastic Anemia
c. None of the choices
d. Diabetes Mellitus
e. Parkinson disease

A

c. None of the choices

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11
Q

Which among the following is 1.4 percent of the abnormal blastocyst implantation sites?

a. Ovary
b. Internal os
c. Abdominal cavity
d. Interstitium
e. Ampullary region of the Uterine tube

A

c. Abdominal cavity

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12
Q

On what day of development is the Heuser’s membrane formed?

a. Day 9
b. Day 11
c. Day 8
d. Day 13
e. Day 12

A

a. Day 9 - HEUSEN ‘S MEMBRANE

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13
Q

Overexpression of this gene might end up with conjoined twins

a. OTX2
b. HESX1
c. CHORDIN
d. LIM1
e. GOOSECOID

A

e. GOOSECOID

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14
Q

Which among the following extends from the chorionic plate up to the decidual plate?

a. Tertiary villus
b. Primary villus
c. Secondary villus
d. Definitive placental villus
e. Stem or anchoring villi

A

e. Stem or anchoring villi

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15
Q

The following are inhibitors of the reuptake of serotonin, EXCEPT

a. Zoloft
b. None of the choices
c. Prozac
d. Celexa
e. Paxil

A

b. None of the choices

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16
Q

AVE expresses the following genes, EXCEPT

a. OTX2
b. None of the choices
c. HESX1
d. LIM1
e. PITX2

A

e. PITX2

17
Q

Which among the following has control of the mesoderm cell specification by the T expression?

a. NODAL
b. GOOSECOID
c. AVE
d. Fibroblast Growth Factor 8
e. BMP4

A

d. Fibroblast Growth Factor 8

18
Q

Bleeding at the implantation site happens near what day of the menstrual cycle?

a. Day 19
b. Day 28
c. Day 13
d. Day 8
e. Day 9

A

b. Day 28

19
Q

During the second week of development, the following are present, EXCEPT

a. Epiblast
b. None of the choices
c. Amniotic cavity
d. Hypoblast
e. Splanchnic Layer

A

b. None of the choices

20
Q

Which of the following is composed of a cytotrophoblastic core with a syncytial layer covering?

a. Definitive placental villus
b. Primary villus
c. Stem or anchoring villi
d. Secondary villus
e. Tertiary villus

A

b. Primary villus

RECALLS : ANATOMY (6 decks)

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