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Flashcards in Development of Vasculature Deck (74)
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1

Blood vessels develop from

Angioblastic cords from mesoderm

2

Livers role

Main hematopoietic organ until others take over

3

Where do small blood vessels first form and what do they become?

In extraembryonic mesoderm of connecting stalk
Umbilical cord

4

When folding is occurring, where are blood vessels developing and are they connected?

IN yolk sac, vitelline duct, and connecting stalk
No

5

Prominant artery during folding

Dorsal aortae

6

Each pharyngeal arch will have ______ and what are they derived from?

a pair of aortic arches
From aortic sac of heart

7

Aortic arches connect distally to

Pair of dorsal aortae

8

Dorsal aortae connect to yolk sac by _____ and placenta by _____

Vitelline art
Umbilical art

9

Three vitelline arteries survive to become______

Unpaired arteries of adult that supply foregut, midgut, and hindgut

10

Remnants of umbilical arteries

Ligamentous remnants from internal iliac artery

11

Lateral folding and dorsal aortae

Causes the two dorsal aorta to form a single aorta caudal to the neck
In neck and head, they remain separate

12

Distally, two dorsal aorta fuse to form

Common aorta

13

Aortic sac

Rostral common outflow of developing heart and connects heart to pairs of aortic arches

14

Truncus arterioies

Common tube leading from heart to aortic sac
Forms asecnding aorta and pulmonary trunk

15

1st aortic arch...what does it form and when does it form

First and disappears first
Forms maxillary artery that supplies deep regions of face

16

2nd aortic arch...what does it and form and when

Begins to lose connection with aortic sac after formed but still connected to dorsal aorta
Forms stapedial artery which regresses

17

Dorsal aorta between which two arches is lost?

3rd and 4th

18

Postion of dorsal arota cranial to 3rd aortic arch forms

Continuous tube with 3rd arch

19

External carotid from

proximal part of 3rd aortic arch

20

Common arotid from

Part of 3rd aortic arch proximal to external arotids origin

21

Aortic sac regresss where?

In region where 3rd aortic arch arises

22

What is notable segmental artery?

7th cervical intersegmental artery sprouts from each dorsal aorta proximal to their fusion

23

Where do segmental arteries arise forom

Dorsal aorta

24

4th aortic arches fate

Remain associated with aortic sac

25

6th aoritc arches fate

Remain associated with aortic sac and trunucs arteroisis

26

Truncus arteriosis and aortic sac undergo septation to form

Pulmonary trunk and ascending aorta

27

aortic sac associated with which arch is lost?

6th

28

6th aortic arch becomes continuous with

Truncus arteriosis

29

What sprouts from 6th aortic arch?

Right and left pulmonary arteries

30

Which portion of 6th aortic arch is lost?

Right part distal to the sprouting artery