And actually it stop there because of my arrows, but you can actually see now deoxygenated blood kind of goes from the right ventricle, through the pulmonary trunk, through the arteries and into the left and right lung.

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

And I hesitated there just to make sure I got that because it's taking blood away from the heart.

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.

Here you have our tricuspid valve. And I'm gonna label it just as 'T'

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

But this is not as I said in the beginning bad way of thinking about it.

I'm going to do some surgery here.

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

I could just write artery and vein and essentially they would be behaving this way.

This is now going to dump into what we call a venule.

So these two veins, the superior vena cava and the inferior vena cava, are dragging the blood back to the heart, and, generally speaking, these are all considered, of course, veins.

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.

I'll write that right here.

Into the IV, yes.

And you might say, well that wasn't so difficult. I'll say bronchial vessels, because there are also some veins coming off.

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

And then it's gonna come out on the other side, in the pulmonary veins.

There's also another one over here called the superior vena cava, and this is bringing back blood from the arms and head.

And remember I call them arteries, because they're going away from the heart. And there are two arteries, so pulmonary arteries left and right pulmonary arteries.

Well, these vessels, all of them, together are called coronary vessels.

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.

And that's why you see two things here, one here and you see one here and those are basically tubes.

So you have these arteries right over here, the red tubes. Those are arteries. and then the blue ones are veins.

So, here you have a giant vein, this is a vein, and you have an artery.

His vitals are spiking.

And it generally travels through two major kind of vessels.

And at the bottom here, you can't see it because it's on the other side of the heart, but there's another vein called the inferior vena cava.

Start a largebore IV. Keep it open.

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.

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

The bullet lacerated his pulmonary artery and lodged in his thoracic region.

Coronary vessels So, coronary artery and vein.

And so when I draw these two, I really wnat you to just think of the two sides, veins coming from both sides.

Inferior vena cava, and this is the large vein that brings back all the blood from the bottom half of the body.

So when you have dub, you have noise coming from the pulmonic and the aortic valve snapping shut.

Well after that it's gonna go this way it's going to go to this vessel and it's gonna split.

If the artery gets nicked, how long do i have?

You cover up the vein, you do the same thing, you have one tiny opening here, and this opening, let's have it go down so it looks the same, and this opening is to a bicycle pump.

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

It doesn't have any veins.

I can't really show blue on blue, but you know, just try to see they kind of go there.

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

Artery up here, artery over here, and then vein in the other two spots.

In the jugular preferably. okay.