Name: What is leukemia? | Hematologic System Diseases |
Uploaded: 2019-12-08T03:11:28.000Z
Duration: 7 min 39 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

Voiceover: When most people hear the word cancer,

I think what makes leukemia harder to understand

and harder to visualize than other types of cancers

is the fact that with leukemia you don't necessarily

Specifically, it's a cancer of blood cells.

So, what are these blood cells that I'm talking about?

which is where all of the blood is contained.

they think of a liquid, so that's what I am shading in,

So, for one, it has these cells called red blood cells,

which are really important for carrying oxygen

and oxygen is required by all of the organs in our body,

everything from your brain to your muscles requires oxygen.

Then there are these cells that are called platelets,

They are little chunks or fragments of cells

that form blood clots to help stop bleeding.

There are several different types of white blood cells,

which is what our body uses to fight off infection.

So, these are the guys that protect us from bacteria

But they are actually not made in the blood.

so if you were to take a slice of bone like this

so this is your eye right here looking inside the bone,

You would see that on the outside of the bone

is this hard part that we all know about,

but you would see that bone isn't solid all throughout.

There's actually this hollow cavity in the center of the bone,

and that hollow cavity is filled with his red, spongy tissue.

That red, spongy tissue is called bone marrow,

So, I'm going to clear that out so that we can see

If you looked inside, you'd see red blood cells being made,

and you'd see white blood cells being made, right?

starts multiplying really rapidly and out of control

and it starts overtaking the bone marrow,

Firstly, this cell that's dividing really rapidly,

this leukemia cell, doesn't serve any function

It doesn't fight off infection or help make blood clots.

and that's a problem because we don't want

to use any of our body's energy making cells

Secondly, it is a problem because if any one cell

and taking up a lot of space inside the bone marrow,

and very little food for the other cells to grow.

then it can't supply them into the blood,

and that's the problem you see with leukemia,

where you start seeing fewer red blood cells in the blood,

and fewer white blood cells in the blood.

Then, eventually, when the leukemia cells

run out of space to grow inside the bone marrow,

So, you start to see leukemia cells in the blood,

Subtitles ListPlay Video

What is leukemia? | Hematologic System Diseases |

stick

fatigue

eventually

significant