Cardiac muscle

Your heart is a big, strong muscle that pumps blood all around your body. This muscle is very special and is called "cardiac muscle".

Cardiac muscle is made up of special cells called "cardiomyocytes". These cells have a unique ability to create electrical signals that make your heart beat. Just like a super cool toy robot, your heart uses these electrical signals to control how fast or slow it beats.

But what makes this muscle so special is that it works all the time, even when you're sleeping! That's right, your heart never takes a break! When your heart beats, it pushes blood out to the rest of your body. This blood is full of food and oxygen that your body needs to stay healthy and grow.

But unlike other muscles in your body, you can't always control your heart. It just does its job without you even having to think about it! And that's why it's so important to keep your heart healthy by eating good food, getting enough exercise, and seeing your doctor regularly.