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
Develop from endoderm layer
Epithelial lining of urethra
26
Develop from mesoderm layer
Clavicle
27
TRUE OR FALSE: Father of modern embryology is Baer
True
28
Embryonic period
formation of Organ systems
29
Release substance
Acrosomal reaction
30
High temperature
Progrsterone phase
31
Implantation of blastocyst
Endometrium
32
Heussers
Exocaleomic cavity
33
Sinusoids
Exocaleomic cavity
34
Sinusoids
blood vessels
35
nuclear division
Meiosis
36
Turners syndrome
Webbed neck - XO chromosome
37
Edward syndrome
Flexion of fingers
38
Primitive germ cell
at Wall of yolk sac
39
TRUE or FALSE: Higher risk on chorionic villus than amniocentesis
TRUE
40
TRUE or FALSE: High defects during fetal period
FALSE
41
TRUE or FALSE: Menstrual at 28 days. Pregnancy can happen during this day.
TRUE
42
TRUE or FALSE: HCG test is produced by syncitio, a radioummunoassay for pregnancy testing
TRUE
43
TRUE or FALSE: Hydatid mole has little or no embryonic tissue
TRUE
44
Enamel of teeth
Ectoderm
45
Melanocytes
Neural crest
46
Epithelial lining
Endoderm
47
TRUE or FALSE: Crown heel length is from head to butt
FALSE
48
Vernix caseosa
whitish substance
49
First test tube baby in the world is from
England
50
Menstrual period
15 to 18 days
51
Father of Modern Embryology
Baer
52
Primordial germ cell appear in the walk of the yolk sac
4th week:
53
Ameboid movement to the developing gonads
5th week:
54
sex of the baby determination
Moment of fertilization:
55
Crossing Over:
Meiosis
56
solid mass, 16th day cell
morula
57
prevent polyspermy
Zona pellucida
58
digestion of acrosome for the fusion of egg and sperm
Acrosomal reaction
59
where fertilization happens
Ampulla of salpynx
60
organogenesis is completed
1st trimester
61
Simean Crease
Trisomy 21/Down syndrome
62
completed only if oocyte is fertilized
Meiosis
63
formation of trilaminar disc
3rd week:
64
most characteristic event during the 3rd week
Gastrulation
65
formed from cells remaining in the epiblast
formed from cells remaining in the epiblast
66
formed by hypoblast
Endoderm
67
lie between epiblast and endoderm
Mesoderm
68
source of all 3 germ layers of the embryo
Epiblast
69
Normal cycle, sexual activity on the 26th day, can a woman be pregnant?-
No
70
Basal body temperature hormone
Estrogen
71
Haploid nuclei fuse in
fertilization
72
Mental retardation, Syndactyly, flexion of fingers
Trisomy 18
73
Number of days for implantation
7 days
74
The formation of corpus lute from mature Graafian follicle-
Luteinization
75
Implantation of blastocyst
Endometrium
76
Degeneration of Graafian follicle
Atrecia
77
On the 6th day, progesterone is ____ than 26th day
Lesser than
78
Appearance of multiple fusion permitting release of acrosomal content
acrosomal reaction
79
Nucleus of gametes-
pronucleus
80
Webbed neck
XO (Turners)