And the veins actually drain into a spot , directly into the right atrium.

Stay clear of the hepatic artery.

But, actually lungs are kind of interesting in the sense that there is a lot of mixing going on.

This is an arterial, right.

What's happening between these two, time like here, is that blood is actually squeezing out because the pulmonic and aortic valves just opened, blood is squeezing out and going to the whole body.

And I've drawn it as one tube with no split and this is the pulmonary trunk. Pulmonary trunk.

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

In concluding the knee exam, it's important to document a neurovascular exam.

In concluding the ankle and foot exam, it's important to document neurovascular.

It was terribly dangerous. (Laughter)

We can understand functionality. This is really important.

Just a moment, Jethro. Is the needle in his femoral artery, Mr. Palmer?

In concluding the hip exam it is important to document neurovascular exam.

This is an artery. And blood is actually going through the artery, that way.

He had a neck wound that severed his carotid artery, and that made him bleed to death.

You know, I think maybe you will. One forty five over 70 with a pulse, 80.

So blood is headed towards the lungs, going first through the trunk, and of course after the trunk, there is left and right I write that up here pulmonary arteries are next.

So let's get a little more precise with the words we've been talking about, especially with heart disease and heart failure and all of the rest.

This is what we call a plaque.

And these are called the bronchial arteries.

And this is of course the aorta. This is my aorta.

And so when people talk about arteries getting blocked or getting clogged, they're talking about the coronary arteries.

His vitals are spiking.

And then, when the heart is ready to pump it back out, it goes into this artery, and the name of it is the aorta.

Resisted digit abduction tests the ulnar nerve.

BBL's a liter in the field and only one PIV.

And the Arotic valve is going to be what divides the left ventricle from this giant vessel that we talked about earlier.

While the heart is not moving the surgeon can reroute blood vessels, the part of the heart muscles where clogged arteries are restricting the flow.

And then on the other side where the veins are bringing blood back to the heart most of the blood as it turns out, most of the blood actually goes this way into the pulmonary veins.

There is actually a little spot right there that they drain in to.

You can see how the pulmonary and aortic valve are closed when the mitral and tricuspid valve are open.

'cause it's coming after the arteriola, we call it a metarteriole, a metarteriole .

You can see how there are definetely some parallels between how the veins and arteries are set up.

In the middle, you can see that little structure squeezing out, that's the left ventricle, pushing blood out through the aortic valve.

Now, to start the journey, it's gonna have to out of the left ventricle and into the largest artery of the body.

And let me actually show you where the blood vessels come from. These are called coronary vessels I just write the word coronary here.

It doesn't have any veins.

Coronary vessels So, coronary artery and vein.

And on the right you actually see a carotid artery that was engineered.

In concluding the wrist exam it is important to document a neurovascular exam.

And in the last video we saw that one of these clots can go downstream to some point where the arteries get narrow enough so that they actually block the arteries.

I said get your hands in the air.

Remove the ties that bind...

You can see the atrium and the ventricles, how blood flows to our arteries and veins.

Right it's gonna have to go away from the heart. So that's the aorta. The aorta actually has the little arch like that.