You're dead.

But for the sake of demonstration ... I think we should turn on the lights.

That is one of the reasons why AlDS is raging across Africa as fast as it is, and not as fast across Europe.

It's a few cell layers thick. On the inside you have some red blood cells bumping along.

And it doesn't have any mitochondria, no mitochondria.

I'm anemic.

I'm just gonna kind of try to target a couple of the tissues that I think people sometimes might have questions about.

And it's in every cell.

Baby's blood.

So that has no mitochondria, and it's not really using oxygen.

I collapsed from anemia.

DONATE YOUR BLOOD TO THE RED CROSS

Its blood is red. It must have hemoglobin.

The streets will run red with blood... women's blood.

They found these red circular looking objects, and they looked, for all the world,

was crimson with his blood

Your blood count's dropping.

This actual clot that forms, that can restrict the blood vessel, this is a thrombus.

There's significant petechial hemorrhaging in the eyes.

Eyes are hemorrhaged.

And one of them, I woudn't really call it tissue, but you can definitely call it cell type. It's the RBC, and RBC just stands for red blood cell.

The yellow green area is the fluid of blood, which is mostly water, but it's also antibodies, sugars, hormones, that kind of thing.

Kill!

And to answer this question, I would have to remind you that the red blood cell basically looks a little bit like this, right, in cross section.

Grim was the relish you took as you licked the warm blood cool!

The white blood cell count plummets.

That's because I've a headache and anemia.

These are literally amazingly designed cells that are made for the purpose of carrying around oxygen to the body, because they literally are bags of hemoglobin.

Blood... so red...

It's not like donating to the red cross

Skin for skin?

Blood for blood.

While we're waiting the analysis, let's get the blood count. So, place a small amount of blood on your slide.

To rule out fetal blood cells.

End to end, that would form a line that would circle the earth twice.

So people sometimes wonder, you know, if the red blood cells are carrying oxygen to other parts of the body.

Blood will have blood.

Wash blood with blood.

Vampire blood. Jiogulan.

If we were to shrink you down, smaller than the smallest thing you can see with the naked eye... you will find that your piece of hair starts to look... a lot more interesting.

And those red molecules are hemoglobin.

Yeah, his blood wasn't even red.

So it's not using oxygen and really these cells, we call them cells and there are many senses of the word, but they don't really have mitochondria, they also don't have nucleus.

They attack like white blood cells fighting an infection.

The blood was bright red.