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Obstetrics > Fetal Circulation and Placenta > Flashcards

Fetal Circulation and Placenta Flashcards

1
Q

Fetal Circulation from most oxygenated to most deoxygenated

A

Placenta –> umbilical vein –> ductus venousus –> inferior vena cava –> heart/ right atrium (patent foramen ovale to left A to left V OR right V to pulmonary A to ductus arteriosus) –> aorta –> hypogastric arteries (or internal iliac a to umbilical a) –> placenta

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2
Q

How does oxygen cross the placenta?

A

Simple diffusion

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3
Q

How do amino acids cross the placenta?

A

Active transport

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4
Q

How does glucose cross the placenta?

A

Facilitated diffusion

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5
Q

How does IgG cross the placenta?

A

Endocytosis

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6
Q

How does water cross the placenta?

A

Bulk flow

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7
Q

How does iodine cross the placenta?

A

Carrier mediated

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8
Q

How does CO2 cross the placenta?

A

Simple diffusion

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9
Q

How does calcium cross the placenta?

A

Active transport

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10
Q

How does sucrose cross the placenta?

A

Facilitated diffusion

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11
Q

How do electrolytes cross the placenta?

A

Simple diffusion

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12
Q

How does phosphorus cross the placenta?

A

Active transport

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13
Q

How does fructose cross the placenta?

A

Facilitated diffusion

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14
Q

How do ketones cross the placenta?

A

Simple diffusion

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15
Q

How does iron cross the placenta?

A

Active transport

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16
Q

Does PTU cross the placenta?

A

Yes

17
Q

Does Tyrosine cross the placenta?

A

No

18
Q

Does TRH cross the placenta?

A

Yes

19
Q

Does Triiodothyronine cross the placenta?

A

No

20
Q

Does Iodine cross the placenta?

A

Yes

21
Q

Does Insulin cross the placenta?

A

No

22
Q

Does MgSo4 cross the placenta?

A

Yes

23
Q

Does Heparin cross the placenta?

A

No

24
Q

Does TSH cross the placenta?

A

No

25
Q

Does LATS (long-acting thyroid stimulator) cross the placenta?

A

Yes

26
Q

Does Glucagon cross the placenta?

A

No

27
Q

Does IgG cross the placenta?

A

Yes

28
Q

Does Prednisone cross the placenta?

A

No

29
Q

Does Propanalol cross the placenta?

A

Yes

30
Q

Does T3 cross the placenta?

A

Yes

31
Q

Does T4 cross the placenta?

A

Yes

Obstetrics (13 decks)

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