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NURS 326 > Fetal Development > Flashcards

Fetal Development Flashcards

1
Q

PRE-EMBRYONIC STAGE

ZYGOTE

A

Fertilization through week 2

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2
Q

EMBRYONIC STAGE

EMBRYO

A

weeks 3 - 8

Most critical and main organs develop, very susceptible to teratogens

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3
Q

FETAL STAGE

FETUS

A

Week 9 - birth

Refinement of system

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4
Q

MAJOR SYSTEMS

A

Week 6heart beats regularly and lungs are forming
Week 8development of facial features
**Week 20 **vernix and lanugo present

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5
Q

VERNIX

A

white cheese type substance on babies skin

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6
Q

LANUGO

A

fine hair that is on ears, shoulder, cheeks, etc

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7
Q

L/S RATIO

2:1

A

Lecithin-Sphingomyelin (surfactant) important in lung maturity

Week 38

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8
Q

TERATOGENS

A

ETOH, smoking, cocaine, marijuana, infections

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9
Q

TORCH VIRUSES

A

Cytomegalovirus, herpes, HIV, Rubella, Syphillis, Toxoplasmosis, Varicella

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10
Q

A/B

DRUGS

A

Safe

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11
Q

C

DRUGS

A

OK

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12
Q

D/X

DRUGS

A

UNSAFE

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13
Q

DIZYOGOTIC

A

fraternal twins, can be the same or different sex

2 placentas, 2 amnions and corions

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14
Q

**

MONOZYGOTIC

A

identical twins, always the same sex

one fertilized egg that divides May have 2 placentas, amnions and corions but this depends on when the fertilized egg divided

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15
Q

CONJOINED

A

always monozygotic twins

Divsion of fertilized egg is not completed, has to be a C section

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16
Q

CRL

A

crown rump length is measured to assess how far along pregnancy is

17
Q

PLANCENTA

A

provides nutrients to the fetus (metabolic function), acting as a transport of substances between mother & fetus

Maternal Side→ lobular/decidua
Fetal Side→ smooth/chorion & amnio

18
Q

AMNIOTIC FLUID

A

Protects the growing fetus and promotes normal prenatal development
Provides a stable temp, cushion, sterile environment/protection

contains fetal urine, fuild from maternal blood across amnion

Volume of fluid increases during pregnancy until 500-1000mL at term

NURS 326 (19 decks)

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