Your circulatory system contains three blood vessel types: arteries, veins, and capillaries. Arteries carry blood from the heart, unlike veins, which carry blood to the heart. According to the ...

The five vital organs in the human body are the brain, heart, lungs, kidneys, and liver. Other organs include the gallbladder, pancreas, and stomach. Organ systems, such as the nervous system, support ...

Human bodies are designed to move in order to circulate blood and nutrients to every cell. Staying active and on the move is crucial to our health for a lot of reasons. But it's especially important ...