Aorta/IVC/PV Flashcards
Which organ system is the first system to be functional in the embryo?
cardiovascular system
T or F: the embryonic heart and aorta form at different times
False.
The embryonic heart and aorta form at the same time.
When does the embryonic heart and aorta start beating?
22 days
What happens to the embryonic aorta during the 3rd week?
The embryonic aorta begins as 2 dorsal AOs that fuse into 1 AO
What is the vitelline artery complex?
It is made up of vitelline arteries that carry blood from the AO to the yolk sac
A tube that connects the yolk sac to the digestive tract of a developing embryo
vitelline duct/yolk stalk
What is another name for the vitelline duct?
yolk stalk
What are the 3 layers of blood vessels?
- tunica intima
- tunica media
- tunica adventitia
What is the name of the inner layer of a blood vessel?
tunica intima
What is the name of the middle layer of a blood vessel?
tunica media
What is the name of the outer layer of a blood vessel?
tunica adventitia
Which blood vessel layer consists of endothelial tissue?
tunica intima
Which blood vessel layer consists of elastin, smooth muscle fibers, collagenous tissue, and provides the strength of arteries?
tunica media
Which blood vessel layer consists of loose connective tissue and vast vasorum?
tunica adventitia
What is the vasa vasorum?
It is the tiny arteries and veins that supply the blood vessel walls
(It is the vessels of vessels)
List the order in which the blood flows into each of the blood vessels from the heart and back
- Aorta
- Arteries
- Arterioles
- Capillaries
- Venules
- Veins
- IVC
Which is larger in diameter: arteries or veins?
Veins
What carries blood away from the heart to other organs?
Arteries
Does abdominal AO pulsation change with respirations?
No
What is the largest artery of the body?
Aorta
List the sections of the aorta
- aortic root
- ascending AO
- aortic arch
- descending AO
- abdominal AO
- iliac bifurcation
Which portion of the AO is inferior to the diaphragm?
abdominal AO
List the branches of the abdominal AO in descending order
- phrenic arteries
- CA
- SMA
- renal arteries
- RT/LT gonadal arteries
- IMA
- lumbar arteries
What branches are located laterally on the abdominal AO?
phrenic arteries, renal arteries