The amazing way your body and cells work
Our bodies are made of trillions of tiny building blocks called cells. Just like toy building blocks, cells come in many shapes and sizes depending on what they need to build. Some come together to make bones or muscles, our heart or lungs, eyes or skin. Each cell does its part to make our body work as its supposed to.
Our bodies are made of trillions of tiny building blocks called cells. Just like toy building blocks, cells come in many shapes and sizes depending on what they need to build. Some come together to make bones or muscles, our heart or lungs, eyes or skin. Each cell does its part to make our body work as its supposed to.
Each person starts as a single cell. Cells make copies of themselves through a process called ‘cell division’. One cell becomes 2 and then 2 becomes 4 and so on.
After the first five days, these cells divide enough to form a ball, called a blastocyst. At this point the cells are ‘stem cells’ meaning they can become anything. But they begin to change, starting to ‘differentiate’ or become cells that will form the head and brain or the heart and other organs. Then over a few weeks, the cells divide more and specialise further, becoming a foetus.
