Pulse abnormal.

So ischemia is deprivation of blood flow and oxygen downstream from this right over there.

I have an irregular pulse.

That's what we call coronary artery disease, or heart disease.

I ended up with blunt chest trauma.

Your lungs stop breathing, your heart stops pumping.

And it generally travels through two major kind of vessels.

So this is more challenging

Those are not the arteries that people are talking about getting clogged, when people talk about heart disease or heart attacks.

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.

It beats in his breast, like everyone else's, be they man or beast?

My name is Papusay.

We used quantitative arteriography, showing the narrowing.

I also want to once again differentiate cardiac arrest from heart failure, because they sound the same, sound like heart is failing.

Unfortunately, over the course of the next five, 10 years, other companies had the same idea about drugs that would prevent arrhythmias in people who have had heart attacks.

I'd think they were dead.

Now, that doesn't mean that if you can't reach your toes you have heart disease or something like that, but for an ideally fit heart, which is also a muscle, flexibility is important.

And when that happens that's called heart failure.

And anytime I mention the word vein, I just want to make sure you think of blood going towards the heart.

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.

So in 1980, some researchers did a study on a drug called lorcainide, and this was an anti arrhythmic drug, a drug that suppresses abnormal heart rhythms, and the idea was, after people have had a heart attack, they're quite likely to have abnormal heart rhythms, so if we give them a drug that suppresses abnormal heart rhythms, this will increase the chances of them surviving.

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

There was a time when I would have ripped their stillbeating hearts from their chests.

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

So Superior Vena Cava and Inferior Vena Cava.

What's the matter with him?

Now that heart.

My heart!

My heart.

And these two veins, this is also a vein, these two veins are actually dragging blood in from all over the body, into the heart.

Your partner, he's had a heart attack.

Looks like he died of natural causes. Maybe a heart attack.

It's her heart.

Feel my heart.

(HEART MONITOR BEEPING)

(HEART MONITOR FLATLINING)

Heart attack.

I thought my heart was gonna explode.

This pig at 10 06 was having a heart attack.

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.

Let's say this toe right here.

Let's type and cross her for six.

We don't need any of that. We work on a beating heart.

Nameless dread makes you shudder and shake, appalled and aghast, you can feel your heart hammering, fit to burst!

Her heart certainly failed to beat.