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Embryology > Development of the Vasculature > Flashcards

Flashcards in Development of the Vasculature Deck (46):
1

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

mesoderm

2

what forms first extraembryonic vessels or embryonic vessels ?

extraembryonic

3

when do the pharyngeal arches form ?

4th and 5th weeks of development

4

the first arch gives rise to

maxillary artery

5

the second arch gives rise to

hyoid and stapedial arteries

6

the third arch persists and gives rise to

common carotid and internal carotid arteries

7

the fourth arch gives rise to

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

8

the right 6th arch gives rise to

right pulmonary artery

9

the left 6th arch gives rise to the

left pulmonary artery and ductus arteriousus

10

what is the carotid duct

connects the 3rd and 4th arches

11

what nerves supplies the 6th arch

recurrent laryngeal nerve

12

general function of the vitelline arteries

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

13

the thoracic vitelline arteries supply what

esophagus

14

the celiac artery supplies

foregut

15

superior mesenteric arteri supplies

midgut

16

inferior mesenteric artery supplies the

hindgut

17

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

allatois

18

umbilical arteries in adulthood are what

medial umbillical ligaments

19

dysphagia lusoria

abnormal origin of the subclavian artery

20

Anomalies associated with development of the arterial system /

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

21

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

vitelline, umbilical and cardinal

22

Function of the vitelline veins

carry blood from yolk sac to sinus venosus

23

function of the umbilical veins

carry oxygenated blood from the placenta to the embryo

24

Function of the cardinal veins

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

25

Veins derived from the vitelline veins

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

26

distal portion of the left umbilical veins carries blood

from the placenta towards the liver

27

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

ductus venosus

28

function of the ductus venosus

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

after birth the left umbilical vein becomes

liigamentum teres hepatis

30

after birth the ductus venosus obliterates to

ligamentum venosum

31

subcardinal veins

drain the kidneys

32

sacrocardinal veins

drain the lower extremities

33

supracardinal veins

drain the body wall

34

anatomosis of the anterior cardinal vein forms

brachiocephalic artery

35

left anterior cardinal vein contributes

to the coronary sinus and small left superior intercostal vein

36

superior vena cava arises from

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

37

right subcardinal forms a significant portion of

inferior vena cava

38

anatomosis of sacrocardinal veins forms

left common iliac

39

supracardinal veins help form

azygous system

40

posterior cardinal veins form

arch of azygos vein and left superior intercostal vein

41

contributions to inferior vena cava

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

right gonadal vein drains to

IVC

43

left gonadal vein drins to

left renal vein

44

anomalies associated with venous system

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

45

congenital lymphedema

dilation of lymphatic channels or congenital hypoplasia of lyphatic channels

46

cystic hygroma

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