Human Body
The human body is an amazing structure made up of many fascinating parts and systems. Learn about the human body and how its systems work together.
No One Can Live Without a Mesentery, But What Does It Do?
Many Animals Have a Cloaca, But Humans Should Not
Talk May Be Cheap, but the Larynx Makes It Possible
What Is Saliva and How Does It Change the Taste of Food?
How One Key Protein May Help Tendons Enhance Athletic Performance
The Science Behind Why We All Have Snot
Learn More / Page 11
Your ears are very sensitive to the air or water pressure around them. But just what happens when you dive into that pool?
When you cut yourself accidentally, do you ever wonder what makes up this thing we call blood? It's pretty amazing stuff, considering how it wards off infections while supplying nutrients to every cell in the human body.
The heart is a vital organ that basically serves as a pump. Learn about heart chambers and valves, blood flow, the heart's electrical system and blood supply. Read more about how this amazing organ works.
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There are millions of bacteria, microbes, viruses, toxins and parasites that want to invade your body. And they'd happily do it, too -- if it weren't for your immune system.