Embryology 2018 Flashcards

1
Q

Syndacytyly, micrognathia

A

Trisomy 18

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2
Q

Webbed neck

A

Turner Syndrome / XO

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3
Q

Product of spermiogenesis

A

Sperm

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4
Q

Whitish fatty substance

A

Vernix Caseosa

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5
Q

Heuser’s + hypoblast

A

Exocoelemic Cavity

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6
Q

Increase Basal Body Temperature is due to what hormone

A

Progesterone

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7
Q

Prevents degeneration of corpus luteum

A

hCG

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8
Q

Primodial germ cell that appear in the

A

Wall of the Yolk Sac

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9
Q

Maternal capillaries

A

Sinusoids

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10
Q

During implantation, the blastocyst is embedded in the

A

Endometrium

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11
Q

Multiple fusion in the upper part of the sperm

A

Cortical Reaction

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12
Q

endometrial phase is day 24

A

Luteal

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13
Q

Normal menstrual cycle

A

25-32 days

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14
Q

Cervical mucus-

A

ovulation

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15
Q

True or False: hCG for radioimmunoassay, basis for pregnancy test

A

TRUE

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16
Q

True or False: At third month, head is 1/2 the CRL.

A

TRUE

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17
Q

True or False: Baer is the father of modern embryology.

A

TRUE

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18
Q

True or False: Chorionic villus sampling has higher risk than amniocentesis.

A

TRUE

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19
Q

True or False: Ultrasonography is a safe technique perform during pregnancy.

A

TRUE

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20
Q

True or False: Viral infection causes intrauterine growth retardation.

A

TRUE

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21
Q

True or False: Undergo resting stage before metaphase.

A

TRUE

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22
Q

True or False: Amniocentesis - chromosomal abnormalities.

A

FALSE

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23
Q

The spinal and autonomic ganglion, cranial nerves, and the meninges arise from

A

Neural Crest

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24
Q

Develop from ectoderm layer

A

Enamel of the teeth

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25
Q

Develop from endoderm layer

A

Epithelial lining of urethra

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26
Q

Develop from mesoderm layer

A

Clavicle

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27
Q

TRUE OR FALSE: Father of modern embryology is Baer

A

True

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28
Q

Embryonic period

A

formation of Organ systems

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29
Q

Release substance

A

Acrosomal reaction

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30
Q

High temperature

A

Progrsterone phase

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31
Q

Implantation of blastocyst

A

Endometrium

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32
Q

Heussers

A

Exocaleomic cavity

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33
Q

Sinusoids

A

Exocaleomic cavity

34
Q

Sinusoids

A

blood vessels

35
Q

nuclear division

A

Meiosis

36
Q

Turners syndrome

A

Webbed neck - XO chromosome

37
Q

Edward syndrome

A

Flexion of fingers

38
Q

Primitive germ cell

A

at Wall of yolk sac

39
Q

TRUE or FALSE: Higher risk on chorionic villus than amniocentesis

A

TRUE

40
Q

TRUE or FALSE: High defects during fetal period

A

FALSE

41
Q

TRUE or FALSE: Menstrual at 28 days. Pregnancy can happen during this day.

A

TRUE

42
Q

TRUE or FALSE: HCG test is produced by syncitio, a radioummunoassay for pregnancy testing

A

TRUE

43
Q

TRUE or FALSE: Hydatid mole has little or no embryonic tissue

A

TRUE

44
Q

Enamel of teeth

A

Ectoderm

45
Q

Melanocytes

A

Neural crest

46
Q

Epithelial lining

A

Endoderm

47
Q

TRUE or FALSE: Crown heel length is from head to butt

A

FALSE

48
Q

Vernix caseosa

A

whitish substance

49
Q

First test tube baby in the world is from

A

England

50
Q

Menstrual period

A

15 to 18 days

51
Q

Father of Modern Embryology

A

Baer

52
Q

Primordial germ cell appear in the walk of the yolk sac

A

4th week:

53
Q

Ameboid movement to the developing gonads

A

5th week:

54
Q

sex of the baby determination

A

Moment of fertilization:

55
Q

Crossing Over:

A

Meiosis

56
Q

solid mass, 16th day cell

A

morula

57
Q

prevent polyspermy

A

Zona pellucida

58
Q

digestion of acrosome for the fusion of egg and sperm

A

Acrosomal reaction

59
Q

where fertilization happens

A

Ampulla of salpynx

60
Q

organogenesis is completed

A

1st trimester

61
Q

Simean Crease

A

Trisomy 21/Down syndrome

62
Q

completed only if oocyte is fertilized

A

Meiosis

63
Q

formation of trilaminar disc

A

3rd week:

64
Q

most characteristic event during the 3rd week

A

Gastrulation

65
Q

formed from cells remaining in the epiblast

A

formed from cells remaining in the epiblast

66
Q

formed by hypoblast

A

Endoderm

67
Q

lie between epiblast and endoderm

A

Mesoderm

68
Q

source of all 3 germ layers of the embryo

A

Epiblast

69
Q

Normal cycle, sexual activity on the 26th day, can a woman be pregnant?-

A

No

70
Q

Basal body temperature hormone

A

Estrogen

71
Q

Haploid nuclei fuse in

A

fertilization

72
Q

Mental retardation, Syndactyly, flexion of fingers

A

Trisomy 18

73
Q

Number of days for implantation

A

7 days

74
Q

The formation of corpus lute from mature Graafian follicle-

A

Luteinization

75
Q

Implantation of blastocyst

A

Endometrium

76
Q

Degeneration of Graafian follicle

A

Atrecia

77
Q

On the 6th day, progesterone is ____ than 26th day

A

Lesser than

78
Q

Appearance of multiple fusion permitting release of acrosomal content

A

acrosomal reaction

79
Q

Nucleus of gametes-

A

pronucleus

80
Q

Webbed neck

A

XO (Turners)