Cannula

Okay, so you know when you get a boo-boo and you need a band-aid to cover it up? Well, sometimes when people are sick or hurt, doctors or nurses need to give them medicine or take their blood to make sure they are getting better. But we can't just put a band-aid over the spot where the medicine or the blood needs to go. So, to help with that, doctors and nurses use something called a cannula.

A cannula is a thin, plastic tube that is put into a person's body through their skin. It's like a really skinny straw that can go into their arm, for example. Once the cannula is in, we can put medicine or take blood out through it. It doesn't hurt too much because it's so small, but it might feel a bit weird or uncomfortable at first. And when we're done using it, we take it out of the person's body so they can heal up again.

So, think of a cannula like a tiny straw that helps doctors and nurses give people medicine and take blood without causing too much pain or damage. It's like a superhero tool for helping people feel better!