Explore the fascinating world of the human body in this animated educational video. Discover the roles of essential organs ...

The endothelium is a cell layer that lines the body’s blood vessels and lymphatic vessels. These cells are necessary to maintain healthy organs, tissues, and overall body function. The cells of the ...

Human bodies make 2 million red blood cells per second. They each live for 120 days and spend that time zooming completely around the body every 20 seconds, carrying oxygen from the lungs to other ...

The immune cells that protect us from infection and cancer seek out a wide array of fuel sources to power their function -- including some long thought to be cellular waste products. The findings lay ...