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Flashcards in Fetal Circulation Deck (27)
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1

how many aortic arches do we start with and how many do we end up with

we start with 6 and end up with 3

2

which aortic arches are left

3,4, 6

3

what does the 3rd arch form

common carotid

4

what does the 4th arch form

left side of the arch of the aorta

5

what does the 6th arch form

pulmonary arteries and DUCTUS arteriosis

6

the common carotid comes from what arch

3rd

7

the left side of the arch of the aorta comes from what arch

4th

8

the left and right pulmonary arteries and the ductus arteriosis comes from what arches

6th

9

is there still a ductus arteriosis in preductal coarctation of the aorta? Also , is there cyanosis

yes, the ductus arterosis still persists and there is cyanosis in the lower limbs because there is mixing of blood

10

in post ductal coartation of the aorta is there is a ductus arteosis ? Also is there cyanosis

no, there is not a ductus arteosis , there is not cyanosis but notched ribs are present

11

what physical findings do we see with post ductal coarctation of the aorta

notched ribs and hypertension in upper body and low pulse in low body

12

do we find oxygenated or deoxygenated blood in the umbilical vein

oxygenated blood

13

do we find oxygenated or deoxygenated blood in umbilical arteries

deoxygenated blood

14

how many umbilical arteries do we have

2

15

how many umbilical veins do we have

1

16

what is the name of the structure that allows for bypassing the liver and what structure does it turn into

ductus venosis , ligamentum venosum

17

where does blood go after it bypasses the liver

IVC

18

What structure allows for blood to go directly from the RA to the LA and what does it turn into

forarmen ovale , fossa ovale

19

what structure allows deoxy blood to enter descending aorta from the pulmonary trunk and what does it turn into

ductus arterosis, ligamentum arteriosum

20

is there mixing of maternal and fetal blood in the placenta

no

21

what do the right and left umbilical arteries turn into

medial umbilical ligaments

22

what does the left umbilical vein turn into

ligamentum teres

23

what does the ductus venosus turn into

ligamentum venosum

24

what does the foramen ovale turn into

fossa ovale

25

what does the ductus arteosis turn into

ligamentum arteriosum

26

what does the vitalline vein turn into

portal vein

27

what does the cardinal vein turn into

SVC + IVC