E2 Great Vessel Development Flashcards Preview

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Flashcards in E2 Great Vessel Development Deck (30)
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1
Q

Development of the arterial system happens from _____ to _____

A

1st month

1st breath

2
Q

Aortic Arches arise from the ____, terminate in the _____ appear in a ____ to ____ sequence and not all simultaneously.

A

Aortic sac

R and L dorsal aortae

Cranial
Caudal

3
Q

1st Aortic Arch derivative:

A

Regress- maxillary a.

4
Q

2nd Aortic Arch derivative:

A

Regress- stapedial and hyoid aa

5
Q

3rd Aortic Arch derivative:

A

L/R common carotid, internal carotid, external carotid aa.

6
Q

4th Aortic Arch derivative:

A

L- Part of aortic arch

R- Part of R subclavian a.

7
Q

6th Aortic Arch derivative:

A

L- L pulmonary a. and ductus arteriosus

R- R pulmonary a.

8
Q

7th segmental artery derivative:

A

L- L subclavian a

R- Part of R subclavian a

9
Q

Dorsal Aorta derivative:

A

L- Descending thoracic aorta

R- Regress- part of R subclavian a

10
Q

Aortic sac derivative:

A

L- Part of aortic arch

R- Brachiocephalic trunk

11
Q

Most somatic arteries of trunk develop from ______ from dorsal aorta.
They specifically become Intercostal and Lumbar aa.

A

Intersegmental arteries

12
Q

Initially are number of paired vessels supplying the yolk sac. Will fuse to form arteries in dorsal mesentery of the gut. Develop into Celiac artery/trunk and Superior Mesenteric a.

A

Vitelline a.

13
Q

Initially are paired ventral branches off dorsal aorta; course to the placenta. Develop into Inferior Mesenteric a.

A

Umbilical Artery

14
Q

The Umbilical artery develops into the _____, but it also forms a secondary connection with the dorsal aorta known as _____. After birth, proximal portions persist as ______. Distal parts are obliterated to form ______.

A

Inferior Mesenteric a.

Common Iliac a.

Internal Iliac and Superior Vesical aa.

Median Umbilical Ligaments

15
Q

Intersegmental aa derivatives:

A

Intercostal aa

Lumbar aa

16
Q

Vitelline aa derivatives:

A

Celiac Trunk

Superior Mesenteric a.

17
Q

Coronary arteries are derived from ____. Connection to the aorta is formed by ingrowth of arterial endothelial cells. This is how the coronary aa invade the aorta.

A

Epicardium

18
Q

The three pairs of major veins of the embryonic venous system are:

A
  1. Vitelline vv- drains GI tract and gut derivatives
  2. Umbilical vv- oxygenated blood from placenta to embryo
  3. Cardinal vv- draining head, neck, and body wall
19
Q

As the vitelline vv pass through septum transversum, the liver cords growing into the septum interrupt the course and form ____. The network around the duodenum will form a single vessel known as ____.

A

Hepatic Sinusoids

Hepatic portal v

20
Q

Reduction in the L sinus horn results in enlargement of R vitelline duct to form part of the ____.
The ____ is also derived from the R vitelline vein. R-L anastomoses remodeled to drain into the portal vein, this is the ____ vein and ____ vein.

A

Inferior Vena Cava

Superior Mesenteric v

Splenic
Inferior Mesenteric

21
Q

R umbilical v will regress and obliterate. L umbilical v will lose connection to sinus horn and form _____, which bypasses the sinusoidal plexus of the liver and drains directly into IVC

A

Ductus Venosus

22
Q

Posterior Cardinal vv derivatives:

A

Common Iliac vv

Sacral Portion of IVC

23
Q

Anterior Cardinal vv derivatives

A

Brachiocephalic vv

IJV

EJV

24
Q

Supracardinal vv derivatives:

A

Intercostal vv
Hemiazygos v
Azygos v
Segment of IVC inferior to kidneys

25
Q

Subcardinal vv derivatives:

A

Renal vv
Gonadal vv
Renal segment of IVC

26
Q

Common Cardinal vv derivatives:

A

Superior Vena Cava (from R common cardinal)

27
Q

6 primary lymph sacs include:

A
  1. Jugular (2)
  2. Iliac (2)
  3. Retroperitoneal (1)
  4. Cisterna Chyli (1)
28
Q

Caudal R lymphatic duct plus anastomosis of L and R cranial thoracic ducts make up the ____

A

Thoracic Duct

29
Q

Cranial portion of the right thoracic duct makes up the _____

A

Right Lymphatic Duct

30
Q

The ____ cardinal vv drain the cephalic part of embryo. The ___ cardinal vv drain the rest of the embryo. The ____ cardinal vv are the joining of Anterior and Posterior cardinals and empty into ____.

A

Anterior

Posterior

Common

Sinus horns