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Embryology > Development of the Vasculature > Flashcards

Development of the Vasculature Flashcards

1
Q

arteries, veins, and lymphatic channels form from what embryonic layer

A

mesoderm

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2
Q

what forms first extraembryonic vessels or embryonic vessels ?

A

extraembryonic

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3
Q

when do the pharyngeal arches form ?

A

4th and 5th weeks of development

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4
Q

the first arch gives rise to

A

maxillary artery

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5
Q

the second arch gives rise to

A

hyoid and stapedial arteries

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6
Q

the third arch persists and gives rise to

A

common carotid and internal carotid arteries

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7
Q

the fourth arch gives rise to

A

the right 4th arch persists as the right subclaviian artery

the left 4th arch persists as a segment of the aortic between the origin of the left common carotid and left subclavian

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8
Q

the right 6th arch gives rise to

A

right pulmonary artery

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9
Q

the left 6th arch gives rise to the

A

left pulmonary artery and ductus arteriousus

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10
Q

what is the carotid duct

A

connects the 3rd and 4th arches

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11
Q

what nerves supplies the 6th arch

A

recurrent laryngeal nerve

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12
Q

general function of the vitelline arteries

A

arise from the abdominal aorta and supply derivatives of the yolk sac

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13
Q

the thoracic vitelline arteries supply what

A

esophagus

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14
Q

the celiac artery supplies

A

foregut

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15
Q

superior mesenteric arteri supplies

A

midgut

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16
Q

inferior mesenteric artery supplies the

A

hindgut

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17
Q

the umbillical arteries are first paired branches of the dorsal aorta that supply what?

A

allatois

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18
Q

umbilical arteries in adulthood are what

A

medial umbillical ligaments

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19
Q

dysphagia lusoria

A

abnormal origin of the subclavian artery

20
Q

Anomalies associated with development of the arterial system /

A

patent ductus arteriousus
coarctation of the aorta
dysphagia lusoria
double aortic arch

21
Q

What are the three system of veins that can be observed during the 5th week of development ?

A

vitelline, umbilical and cardinal

22
Q

Function of the vitelline veins

A

carry blood from yolk sac to sinus venosus

23
Q

function of the umbilical veins

A

carry oxygenated blood from the placenta to the embryo

24
Q

Function of the cardinal veins

A

drain blood from the rest of the embryo and deliver it to the Right side of the heart

25
Q

Veins derived from the vitelline veins

A 
small region of IVC
portal vein
hepatic vein
ductus venosus
superior mesenteric
inferior mesenteric
splenic
26
Q

distal portion of the left umbilical veins carries blood

A

from the placenta towards the liver

27
Q

what is the communication between the left umbilical and the right vitelline called

A

ductus venosus

28
Q

function of the ductus venosus

A

bypasses the sinusoids of the liver so that blood reaching the liver has the highest oxygenated and nutritional content bypassing the capillary beds this blood reaches the heart and brain and not the liver

29
Q

after birth the left umbilical vein becomes

A

liigamentum teres hepatis

30
Q

after birth the ductus venosus obliterates to

A

ligamentum venosum

31
Q

subcardinal veins

A

drain the kidneys

32
Q

sacrocardinal veins

A

drain the lower extremities

33
Q

supracardinal veins

A

drain the body wall

34
Q

anatomosis of the anterior cardinal vein forms

A

brachiocephalic artery

35
Q

left anterior cardinal vein contributes

A

to the coronary sinus and small left superior intercostal vein

36
Q

superior vena cava arises from

A

union of right common cardinal vein, proximal part of right anterior cardinal vein

37
Q

right subcardinal forms a significant portion of

A

inferior vena cava

38
Q

anatomosis of sacrocardinal veins forms

A

left common iliac

39
Q

supracardinal veins help form

A

azygous system

40
Q

posterior cardinal veins form

A

arch of azygos vein and left superior intercostal vein

41
Q

contributions to inferior vena cava

A

heaptic segment from right vitelline
suprarenal segment from right subcardinal
renal segment from subcardinal and supracardinal
subrenal segment from right supracardinal
common iliacs from posterior cardinal

42
Q

right gonadal vein drains to

A

IVC

43
Q

left gonadal vein drins to

A

left renal vein

44
Q

anomalies associated with venous system

A

double inferior vena cava, absence of inferior vena cava, persistent left superior vena cava or double superior vena cava

45
Q

congenital lymphedema

A

dilation of lymphatic channels or congenital hypoplasia of lyphatic channels

46
Q

cystic hygroma

A

large swellings composed of fluid filled cavities involve jugular lymph sacs that fail to connect lymphatic vessels

Embryology (19 decks)

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