But Why: A Podcast for Curious Kids cover image

Why do we have blood and what does it do?

But Why: A Podcast for Curious Kids

CHAPTER

The Different Types of Blood

Blood is made up of two main parts. There's a liquid part and we call that either plasma or serum. And then there's cells and there's three different types of cells that we'll talk about. Red blood cells, white blood cells, and platelets are like band-aids from the inside.

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