Check your knowledge of the heart and how blood is transported around the body by blood vessels ahead of your Higher Human Biology exam. Brush up on your knowledge of arteries, capillaries, veins and ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

According to a survey conducted by The Harris Poll on behalf of the American Heart Association, 42% of U.S. adults do not ...

An international research team has uncovered a new insight into human evolution by comparing humans' hearts with those of other great apes. An international research team from Swansea University and ...

We all know that the heart, along with the brain, is the most important organ for the body that is responsible for pumping blood. However, there exists a "second heart" as well, which functions inside ...

Everywhere scientists look for microplastics, they’ve found them — food, water, air and some parts of the human body. But examinations of our innermost organs that aren’t directly exposed to the ...

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 many cells of the human body, hair-like protrusions known as cilia act as antennae, allowing cells to receive signals from their environment and other cells. As cells grow and divide, each cilium ...