So this valve is called the Tricuspid valve.

Do the Sprinkler for me.

And it passed through the valve here. So this valve is called the Mitral valve.

Civil Horizontal Valve

One will be the tricuspid valve and the other the mitral valve.

But before it goes it has to passed another valve. So this is a valve right here. Call it Pulmonary valve.

I thought this building had a sprinkler system.

The main valve is turned off.

Here you've got the aortic valve.

Now we want to make a choice for Sprinkler, but we're constrained to always choose Sprinkler being positive, so we'll make that choice.

But God my God doesn't show up on sprinkler images.

This is called a cycle valve tube.

Up here you have the pulmonary valve.

And then the final valve, I need to find a nice spot to write it maybe to right here, this final valve that passes through is called the Aortic valve.

Did the sprinkler system go off or something? no, I checked.

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

Can I borrow a heart valve from you?

And this is how you make a valve.

The sprinkler is shooting out a stream of water onto the grass.

In other words, we're constraining Sprinkler and Rain to always be positive.

It's gonna go back perhaps through the mitral valve, it can go there, or it might go through the tricuspid valve.

This is actually a heart valve, which we engineered.

And now, if you have this pump, it's like a great, great sprinkler.

I welded the breech, but the valve is still gaping.

Does the color of the valve matter? What matters here?

Let's watch. (Sound of air escaping from valve) (Music) (Whirring sound)

It turns out wherever there's a sprinkler head and a palm tree, you get the effect.

Open the air inlet valve to supply compressed air to the machine

And the way you engineer this heart valve is the same strategy.

We find that the Sprinkler variable is negative, so we're looking at this part of the table.

You can see two of the leaflets of the aortic valve working there.

But today it's most widely used in office buildings in the sprinkler system as a fire suppression fluid.

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

I've drawn the pulmonary valve as being open, but is that really the case?

On the starboard side, there's a big valve! Can you crank that boat down?

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

It has a funny tri lobal shape at the bottom, which contains the aortic valve.

And so let's say we do that sampling with a random number generator, and it comes up negative for Sprinkler.

Someone on the AV team hung a projector really close to a sprinkler head and the fire alarm went off.

The un digestive food reaches the Ileo cecal valve and enters the large intestine or colon.

You'll hear S1 when the tricuspid and the mitral valve snap shut. So far so good.

And they are like the fundibulator valve of the architectural, uh, what do you think doctor Joseph?

This is the second chamber of the heart. And it gets there by passing through the valve.

At the back of the Machine, open the Air Inlet Valve to supply compressed air to the Machine

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