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S&F III: Exam 1 > Development Of Great vessels > Flashcards

Flashcards in Development Of Great vessels Deck (64):
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Aortic sac

Rostral most part of truncus arteriosus

Has paired aortic arches

1

Paired dorsal artae

Connected to heart thru aortic arches, supply yolk sac

Fuse to become descending aorta

2

Paired intersegmental arteries (branch of aorta)

Grow btwn somites to supply blood to body wall

Form: posterior intercostal aa., lumbar aa., subclavian aa., common iliac aa.

3

What forms subclavian aa.?

7th intersegmental aa.

4

What forms common iliac aa.?

5th lumbar intersegmental aa.

5

Unpaired vitelline arteries (branch of aorta)

Supplies yolk sac derivatives

Form esophageal and bronchial aa.; celiac, superior, and inferior mesenteries aa.

6

Paired umbilical arteries (aorta)

Forms (proximal) internal iliac arteries, superior vesical a., and medial umbilical ligamen

7

Paired lateral splanchnic arteries (aorta)

Form renal, suprarenal, and gonadal arteries

8

Truncus arteriosus

Arterial trunk that originates from both ventricles that will develop into aorta and pulmonary trunk

9

What aortic arches are major contributors to definitive arteries

3,4,6

10

What aortic arches degenerate?

1,2,5

11

What does aortic arch 1 form part of

Maxillary artery

12

What does aortic arch 2 form part of

Stapedial artery

13

Proximal part of Arch 3

Common carotid artery

14

What forms de novo from common carotid and what does it supply?

External carotid aa., supplies structures external to skull

15

Distal part of arch 3

Forms part of internal carotid artery (w/ dorsal aorta)

16

Which dorsal aortae degenerate?

Between 3rd and 4th arch

17

Left aortic arch 4

Contributes to Arch of Aorta (w/ aortic sac and left dorsal aorta)

18

What combines to make Definitive Arch of Aorta?

Left 4th aortic arch, left dorsal aorta, aortic sac

19

Rt 4th aortic arch

Right subclavian artery (w/ rt dorsal aorta and rt 7th intersegmental artery)


20

What forms right subclavian artery?

Rt 4th aortic arch, rt dorsal aorta, rt 7th intersegmental artery

21

What forms left subclavian artery?

Lt 7th intersegmental artery

22

What forms pulmonary trunk?

Aortic arch 6 with truncus arteriosus

23

Proximal aortic arch 6

Left and right pulmonary arteries

24

Distal aortic arch 6

Degenerates on right

Left becomes ductus arteriosus

25

Ductus arteriosus

2nd bypass of pulmonary circulation that shunts blood from left pulmonary artery to arch of aorta (closes at 3 mo old)

26

Ligamentum arteriosum

Fibrotic cord connecting Left Pulmonary Artery to arch of aorta

Remnant of ductus arteriosus

27

What forms brachiocephalic trunk

Aortic sac

28

Caudal part of right dorsal aorta fate

Degenerates

(Btwn right 7 intersegmental artery and fused rt/lt dorsal aorta)

29

Intersegmental arteries become X postnatal

Posterior intercostal
Lumbar
Common Iliac Aa.

30

Vitelline arteries become X postnatal

Esophageal, bronchial, celiac,
Superior and inferior mesenteries

31

Lateral splanchnic arteries become X post natal?

Renal, suprarenal, gonadal

32

Umbilical arteries become what postnatal

Internal iliac artery
Superior vesical artery

33

Right and left vitelline veins become

Hepatic sinusoids

34

Anterior cardinal vein becomes

Internal jugular vein

35

Right vitelline vein becomes

Hepatic portal vein, superior and inferior mesenteries, splenic [hepatic portal system]

part of IVC

36

Right anterior and right common cardinal veins become

SVC

37

Left umbilical vein becomes

Ligamentum teres heparin

38

Ductus venosus becomes

Ligamentum venosum

40

Foramen ovale becomes

Fossa ovalis

41

Ductus arteriosus becomes

Ligamentum arteriosus

42

Rt recurrent laryngeal nerve

6th pharyngeal arch; hooks around right subclavian artery (4th aortic arch)

43

left recurrent laryngeal nerve

hooks around ligamentum arteriosum (6th aortic arch) and arch of aorta (4th aortic arch)

44

Coarctation of aorta

narrowing of the aorta sup/inf to entrance of ductus arteriosus

45

postductal coarctation

inferior to ligmentum arteriosum , causes formation of two collaterals to reach DA

46

postductal collaterals (2)

anterior intercostal branches (ITA0 and posterior intercostal arteries (AA)

Sup and inf. epigastric arteries

*RIB NOTCHING"`

47

preductal coarctation

superior to patent ductus arteriosus

48

patent ductus arteriosus

failure of closure of ductus arteriosus; results in AA to PA shunting

*Rubella and Premies*
*NSAIDS and Prostaglandin Inhibitors to Treat**

49

abnormal right subclavian artery

causes dysphagia due to constricted esophagus

forms from rt 7th intersegment A and persistence of distal rt. dorsal aorta

50

double aortic arch

two arches due to persistence of distal rt. aorta
forms ring around trachea/esophagus

51

right aortic arch

anterior/posterior to esophagus and trachea (post=prob)

persistence of right aorta, abnorm degen of distal left dorsal aorta

52

what do right and left vitelline veins drain?

primitive gut

53

Ductus venosus

venous bypass of liver, does L to R shunt from left umbilical vein to IVC

54

ligamentum venosum

postnatal remnant of ductus venosus

55

left umbilical vein

carries O2 to fetus;
enters liver and drains into hepatic sinusoids and IVC

56

anterior and posterior cardinal veins

drain cephalic and caudal parts of early embryo

57

which veins ultimately degenerate at least in part?

left vitelline vein, rt umbilical vein, left common cardinal vein, posterior cardinal veins

58

where do the cardinal veins empty

into common cardinal--> sinus venosus

59

Right and Left anterior cardinal veins become

IJV, left brachiocephalic vein

60

right anterior cardinal vein becomes

right brachiocephalic vein

61

right cardinal veins become

SVC

62

partial part of posterior cardinal vein becomes

segment of IVC, segment of common iliac veins

63

double superior vena cava

persistence of terminal lt anterior cardinal vein connection between left brachiocephalic vein and left common cardinal vein

64

left SVC

terminal right anterior cardinal vein degenerates instead of left