3, Pozvonochnue.

Or what you're not sure about.

You've got pulmonary arteries carrying blood, you've got bronchial arteries carrying blood and that blood mixes.

Now arteries.

And these are called the bronchial arteries.

These arteries, called coronary arteries, surround, or crown, the heart.

Our arteries can clog.

The renal arteries, the renal veins and the ureters.

Branch of the popliteal artery.

A rare inflammation of the arteries.

This is kind of tube over here. Let me draw the blood So this formation of these plaques we call atherosclerosis.

During the Cambrian, the first vertebrate animals, among them the first fishes, had appeared.

Vertebrates are represented by about 200 species, of which 130 are protected.

I'm going to cut some veins, arteries.

Arteries are over here.

We've got to clear the arteries of our lives.

So, arteries are taking blood AWAY from the heart.

Let me do a different color for arteries.

So you've got a couple of arteries that are branching off and these are also part of the systemic circulation systemic circulation.

This is in the pulmonary artery.

So everything pumps out.

The wall of the artery is actually very muscular.

So we have some arteries, the renal arteries, that flow into them.

My carotid artery had ruptured.

No bone or arteries involved.

Muscular arteries, and the reason, again, if you just want to look at the wall of the artery, you'll get the answer.

Nerves are yellow, arteries are red, veins are blue.

Now lets shift over to the small arteries and arterioles.

The lungs and the arteries of the earth.

And we know that the arteries and the vein are trying to get blood out to the capillaries.

Because the pulmonary artery is actually gonna carry deoxygenated blood, and the pulmonary vein is carrying oxygenated blood.

So that's the fourth point of difference. So now think about of the fact that you might have, a break in the arterial system.

These are called coronary vessels I just write the word coronary here. Coronary vessels So, coronary artery and vein.

So this blood that your hepatic artery.

All these little branches are so tiny, you would call them arterioles.

Afferent arteriole. Don't forget where it comes from, it's coming from the renal artery.

Renal vein and artery are anastomose.

Fish, the earliest vertebrates, evolved in the oceans around 530 Ma.

So ischemia is deprivation of blood flow and oxygen downstream from this right over there.

And let's get into exactly how to think about arteries and veins in general.

So in general, I think of arteries as taking blood from the heart.

And so I kind of think the arteries as being like a river, a fast flowing river.

These guys together are sometimes referred to as elastic arteries.

The blood is coming from the renal artery and it's headed towards something and that's this.

The ventricles are full of blood and let's say they squeeze. They squeeze down and they jettison all the blood into those arteries.