The human skeleton is the frame inside your body. It is made of many bones. An adult person has 206 bones. Children have more bones, but some bones connect when they grow. The skeleton is very important and has two main jobs. First, it gives your body support. It helps you stand up and move. Your muscles connect to the bones to help you walk, run, and lift things. Second, the skeleton gives protection to important organs. For example, the skull is a hard bone on your head that keeps your brain safe. In your chest, the ribs protect your heart and lungs. Your skeleton is a strong and necessary structure that works every day.