Your heart is an organ. It pumps blood all around your body.
Your heart is about the size of your fist.
The heart has four chambers: two upper and two lower.
Your skeleton gives your body its shape and support.
Muscles help your body move.
Skin is the biggest organ of your body.
The liver is the largest organ inside your body.
Your eyes turn light into signals. The signals travel to your brain.
The pupil is an opening in your eye. It lets light in.
Your stomach muscles mix food. They mix it with digestive juices.
Words to know
- organ: a body part
- chambers: small rooms
- pupil: eye opening
