What's going on inside the human body?

Humans take in food through the mouth, digest it in the body, and then expel what is no longer needed from the hips. Simply put, the mouth and buttocks are connected by a single tube.
In the middle of this single tube are the stomach and intestines, which grind food into a pulp and drink in nutrients.
However, it is not only this one tube that keeps us moving, but also the heart, lungs, liver, kidneys, and many other internal organs. We also need bones to support our bodies and muscles to move them.
Humans are able to feel hot, cold, and needy. This is because we have nerves, which are connected to the brain from all parts of the body.
Dogs, cats, cows, and horses are almost the same as humans in terms of body structure. They just have slightly different shapes and functions.
Perhaps the most striking difference between humans and other animals is the brain. This is because the human brain is highly developed in the area of thinking.









