Rod cell

Alright kiddo, have you ever seen those tiny lights in your room that help you see in the dark? They are called night lights. Just like night lights, we have tiny cells in our eyes that help us see in the dark. These cells are called rod cells.

Now, the rod cells are super tiny, and they look like little rods, which is how they got their name. They help us see in low light conditions, like when it's nighttime or in a dimly lit place.

See, when there isn't enough light around, our eyes can't work properly. This is where rod cells come in. They contain a special substance called rhodopsin, which helps them detect even the slightest bit of light. When rhodopsin detects light, it sends a signal to our brains, telling them to start forming an image.

It's pretty amazing, right? But wait, there's more. Rod cells are also super sensitive to movement. So, if something moves around in low light conditions, our rod cells can detect it and tell our brain that something is moving.

So, to put it simply, rod cells are tiny cells in our eyes that help us see in the dark by detecting light and movement. They are special and very important for our vision.