Then you start to take a look at adult life.

We can prevent, or have the earliest detection possible, for breast cancer with an ultrasound device given to the patient.

And then you can see the inside of the heart.

We can tell who's going to get breast cancer from the various genes.

Two of the valves I'm gonna name, I'm giving them new names, something slightly different from what we've been referring to them by. These are the atrioventricular valves.

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

Is it here, only here, and what?

The first into the right atrium. This is chamber number one.

Keep your eye on the valves and we'll talk about them as the blood moves through.

And these micro machines power how a cell moves.

Your rhythm becomes irregular, and that's what happened 45 minutes later.

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

So the blood from the arterial side is coming from the aorta and on the venous side it's actually not even dumping into the inferior or superior vena cava, kind of little known fact that is coming directly into the right atrium.

But I thought you were going to be there.

From the body... to the right auricle... to the right ventricle... and out the pulmonary arteries to the lungs.

It has everything an ambulance has except for a bed.

I got a fibrillation.

Get the paddles.

So let's get started in the upper part of the heart. The Right atrium, It's right there.

So unlike the CAT scans, X rays, thalliums, for women whose breast is in the way of looking at the heart, every time we order something that has even a small amount of radiation, we say, Do we really need that test?

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.

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

Pookums here really has her heart set on another R2.

I've got the paddles.

So I'm gonna just take some blue paint to indicate deoxygenated blood or blood without oxygen, I'm gonna paint in how it look.

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

So what is that that is our left atrium.

I'm going to show you just how early this technology is.

The observation that stem cells, as master cells, could give rise to a whole variety of different cell types heart cells, liver cells, pancreatic islet cells captured the attention of the media and the imagination of the public.

That's their job.

Oh,it's a defibrillator.

From there, we're actually going to get into what we call arterioles.

On the left, we see a tiny piece of beating heart tissue that I engineered from rat cells in the lab.

The old administration used it to travel between cellblocks A and B.

You probably know, if you've been paying attention to some of the science literature that you can now take a skin cell and encourage it to become a liver cell or a heart cell or a kidney cell or a brain cell for any of us.

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

When you are away, I feel lost.

After the riots, they moved us all to B.

The centrosomes have gone to opposite sides of the cell itself.

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

Each one plays a particular role a heart cell, a muscle cell, a brain cell.

unfortunately, i don't have a defibrillator!

Pookums?

Use extreme caution.