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

Carbon dioxide is exhaled... and oxygenated blood continues passing through the veins... into the left auricle... through the left ventricle, passing out again.

On the other side you have the mitral valve, which separates the left atrium from the left ventricle.

So the first branches go and serve the heart. So it's kind of the first to get systemic circulation blood.

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

And the blood goes down into the right ventricle. And then, on the other side I'm going to label the last two chambers.

Top Left Diagonal

Blood flows from the right atrium to the right ventricle, then it goes to the lungs and from the left atrium to the left ventricle.

And it goes down into, you can probably guess how this one is called, is our left ventricle.

And It's again stopped a little bit there, but I can fill it in and the pulmonary veins are gonna deliver that oxygenated blood to the left atrium.

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

And it generally travels through two major kind of vessels.

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

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

So you've already learned that the valves got endocardium.

I'll write that right here.

Into the IV, yes.

Let's start with blood going from the right atrium, this way into the right ventricle.

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

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

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

So Superior Vena Cava and Inferior Vena Cava.

The pulmonary veins drain blood and into the left atrium, right.

So what is that that is our left atrium.

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.

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

This is chamber number two. It goes to the lungs and then back up to the left atrium.

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

And then you've got the capillaries, you've got some blood kind of from both places the pulmonary circulation and the blood from the systemic circulation again mixing.

Start a largebore IV. Keep it open.

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

A venule, and this venule is gonna basically then feed into many, many other venules.

I'm going to do some surgery here.

And it came up in the right atrium from a giant vessel up top called the superior vena cava. And this is a vein of course because it's bringing blood towards the heart.

And then you can see the inside of the heart.

They would ordinarily support fish and other wildlife.

And fortunately he didn't die.

Set the wine glass to the upper right, and then place the water glass to the left of it at an angle.

Pookums here really has her heart set on another R2.

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

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Your lungs stop breathing, your heart stops pumping.

So you think of alternative mechanical parts.

It's the highest range in the state over 13,000 feet.