Learn all about the human body's many systems and some of its individual ... The kidneys filter blood in the body to make urine that then travels down the ureters to the bladder and exits the ...

The human body is incredible. It is a unique system of interrelated structures and essential organs that work continuously to ...

The five vital organs in the human body are the brain ... the most important organ of the circulatory system, which helps deliver blood to the body. It has four chambers. The two upper chambers ...

There are around 10.5 pints of blood in the average human adult body ... The circulatory or cardiovascular system is responsible for moving blood around the body. Within this system, the heart ...

Your heart's will to beat, to keep going, is incredibly strong. If the heart fails, so does everything else… Because it's your heart's job to deliver to every cell, to every nook and cranny of ...

Your heart is an amazing organ. It continuously pumps oxygen and nutrient-rich blood throughout your body to sustain life. This fist-sized powerhouse beats (expands and contracts) 100,000 times ...

Space travel has always tested the human body by the effects of the new conditions ... The immediate effects of microgravity on the blood system derive from the redistribution of blood volume ...

What Is the Nervous System ... and blood pressure. Your brain receives and processes information from sense organs such as your eyes, nose, and ears. And it sends signals to your body that ...