Development Of Great vessels Flashcards

0
Q

Paired dorsal artae

A

Connected to heart thru aortic arches, supply yolk sac

Fuse to become descending aorta

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1
Q

Aortic sac

A

Rostral most part of truncus arteriosus

Has paired aortic arches

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2
Q

Paired intersegmental arteries (branch of aorta)

A

Grow btwn somites to supply blood to body wall

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

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3
Q

What forms subclavian aa.?

A

7th intersegmental aa.

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4
Q

What forms common iliac aa.?

A

5th lumbar intersegmental aa.

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5
Q

Unpaired vitelline arteries (branch of aorta)

A

Supplies yolk sac derivatives

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

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6
Q

Paired umbilical arteries (aorta)

A

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

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7
Q

Paired lateral splanchnic arteries (aorta)

A

Form renal, suprarenal, and gonadal arteries

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8
Q

Truncus arteriosus

A

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

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9
Q

What aortic arches are major contributors to definitive arteries

A

3,4,6

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10
Q

What aortic arches degenerate?

A

1,2,5

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11
Q

What does aortic arch 1 form part of

A

Maxillary artery

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12
Q

What does aortic arch 2 form part of

A

Stapedial artery

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13
Q

Proximal part of Arch 3

A

Common carotid artery

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14
Q

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

A

External carotid aa., supplies structures external to skull

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15
Q

Distal part of arch 3

A

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

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16
Q

Which dorsal aortae degenerate?

A

Between 3rd and 4th arch

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17
Q

Left aortic arch 4

A

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

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18
Q

What combines to make Definitive Arch of Aorta?

A

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

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19
Q

Rt 4th aortic arch

A

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

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20
Q

What forms right subclavian artery?

A

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

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21
Q

What forms left subclavian artery?

A

Lt 7th intersegmental artery

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22
Q

What forms pulmonary trunk?

A

Aortic arch 6 with truncus arteriosus

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23
Q

Proximal aortic arch 6

A

Left and right pulmonary arteries

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24
Q

Distal aortic arch 6

A

Degenerates on right

Left becomes ductus arteriosus

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25
Q

Ductus arteriosus

A

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

26
Q

Ligamentum arteriosum

A

Fibrotic cord connecting Left Pulmonary Artery to arch of aorta

Remnant of ductus arteriosus

27
Q

What forms brachiocephalic trunk

A

Aortic sac

28
Q

Caudal part of right dorsal aorta fate

A

Degenerates

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

29
Q

Intersegmental arteries become X postnatal

A

Posterior intercostal
Lumbar
Common Iliac Aa.

30
Q

Vitelline arteries become X postnatal

A

Esophageal, bronchial, celiac,

Superior and inferior mesenteries

31
Q

Lateral splanchnic arteries become X post natal?

A

Renal, suprarenal, gonadal

32
Q

Umbilical arteries become what postnatal

A

Internal iliac artery

Superior vesical artery

33
Q

Right and left vitelline veins become

A

Hepatic sinusoids

34
Q

Anterior cardinal vein becomes

A

Internal jugular vein

35
Q

Right vitelline vein becomes

A

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

part of IVC

36
Q

Right anterior and right common cardinal veins become

A

SVC

37
Q

Left umbilical vein becomes

A

Ligamentum teres heparin

38
Q

Ductus venosus becomes

A

Ligamentum venosum

40
Q

Foramen ovale becomes

A

Fossa ovalis

41
Q

Ductus arteriosus becomes

A

Ligamentum arteriosus

42
Q

Rt recurrent laryngeal nerve

A

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

43
Q

left recurrent laryngeal nerve

A

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

44
Q

Coarctation of aorta

A

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

45
Q

postductal coarctation

A

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

46
Q

postductal collaterals (2)

A

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

Sup and inf. epigastric arteries

*RIB NOTCHING”`

47
Q

preductal coarctation

A

superior to patent ductus arteriosus

48
Q

patent ductus arteriosus

A

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

  • Rubella and Premies*
  • NSAIDS and Prostaglandin Inhibitors to Treat**
49
Q

abnormal right subclavian artery

A

causes dysphagia due to constricted esophagus

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

50
Q

double aortic arch

A

two arches due to persistence of distal rt. aorta

forms ring around trachea/esophagus

51
Q

right aortic arch

A

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

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

52
Q

what do right and left vitelline veins drain?

A

primitive gut

53
Q

Ductus venosus

A

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

54
Q

ligamentum venosum

A

postnatal remnant of ductus venosus

55
Q

left umbilical vein

A

carries O2 to fetus;

enters liver and drains into hepatic sinusoids and IVC

56
Q

anterior and posterior cardinal veins

A

drain cephalic and caudal parts of early embryo

57
Q

which veins ultimately degenerate at least in part?

A

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

58
Q

where do the cardinal veins empty

A

into common cardinal–> sinus venosus

59
Q

Right and Left anterior cardinal veins become

A

IJV, left brachiocephalic vein

60
Q

right anterior cardinal vein becomes

A

right brachiocephalic vein

61
Q

right cardinal veins become

A

SVC

62
Q

partial part of posterior cardinal vein becomes

A

segment of IVC, segment of common iliac veins

63
Q

double superior vena cava

A

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

64
Q

left SVC

A

terminal right anterior cardinal vein degenerates instead of left