ELI5: Explain Like I'm 5

Tissue microarray

Ok kiddo, so imagine you have a lot of candy bars and you want to know what flavors each of them have. You could unwrap each candy bar and taste it, but that would take a really long time if you have a lot of candy bars.

A tissue microarray is kind of like a way to taste a lot of candy bars without having to unwrap all of them. Instead of candy bars, scientists use tiny pieces of tissue from different parts of the body to study.

They first take a small piece of tissue from each part of the body they want to study, like the brain, the heart, the liver, and so on. Then they put all these small pieces of tissue together in a small block, like a puzzle.

Once they have all these tiny pieces of tissue together in a block, they can cut thin slices from the block and look at them under a microscope. This way they can study different parts of the body and compare them all at once.

It's kind of like looking at all the different flavors of candy bars all at once without having to eat them all. It helps scientists discover new things about the body and how different parts work together.
Related topics others have asked about: