Seagull (2)

sketchfab

No one is really sure what a human being looks like from the inside, but it's pretty clear that we are all made up of a lot of tiny parts working together in perfect harmony. These tiny parts work tirelessly day and night to keep us alive and kicking, never taking a break or getting tired. They're like little machines that just keep on going no matter what happens. Inside our bodies, there's something called the nervous system which is made up of billions of nerve cells all working together in perfect sync. It's like a giant computer with wires and circuits, but instead of zeros and ones it uses electricity to talk to itself. The heart is another one of these tiny machines that never stops beating, pumping blood through our veins like a giant pump. And the brain, well, that's just a big thinking machine that can do math problems faster than any calculator.