Learn all about the human body's many systems and some of its individual organs, both vital and vestigial. When you purchase through links on our site, we may earn an affiliate commission.

“An Estimation of the Number of Cells in the Human Body.” The authors–a team of scientists from Italy, Greece, and Spain–admit that they’re hardly the first people to tackle this questio ...

The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, an adult’s blood vessels could encircle the earth 2.5 times if ...

In short, there’s no definite answer to this question. The estimated number is between 250 and 350. The human body has three main types of joints. They’re categorized by the movement they allow: ...

How many organs are there in the body? To date, there are 79 generally recognized organs in the human body, both internal and external. This is not a question with a direct answer, as strength ...

Additives, chemicals and other byproducts of manufacturing have pervaded our day-to-day — but how exactly they affect the human body is still being revealed nearly 50 years after the landmark ...

For years, TRISH has supported research projects and studies that aim to solve the challenges of human exploration in space ... the bones in the lower part of your body (legs, hips, and spine) are ...