Cardiovascular fitness is the foundation of endurance, stamina, and heart health. When your cardiovascular system is in top shape, everything feels more manageable, whether you're chasing your kids ...

Originally appeared on the NOVA Web site Cut to the Heart ... body into the right atrium. Blood flows through the right atrium into the right ventricle. The right ventricle pumps the blood to the ...

This clip is an introduction to the human heart. We find out about its location within the body and its function as a pump. The heart sits within the chest cavity between the lungs and is about ...

Our lungs are not identical. Our right lung has three lobes, and the left lung only two to make room for our heart. Lungs are ...

Most people have 24 ribs, with 12 on each side of the body. No evidence indicates any ... organs in the chest cavity, including the heart, lungs, and spleen. Yet, the ribs and rib cage are also ...

An animated sequence which tours the human body, picturing and naming the major organs. The job of each organ is briefly explained. The brain, heart, lungs, stomach, liver, kidneys, intestines and ...

Smoking can cause long-term negative effects on the body, including heart disease ... health conditions like glaucoma, cancer, and lung disease. It can also increase inflammation throughout ...

This is what Sunita Williams and Barry Wilmore survived The human body could never ... start bubbling and boiling inside our body. Any oxygen inside our lungs would expand so much that our lungs ...

Let's get straight to the heart ... from the body into the right atrium. Blood flows through the right atrium into the right ventricle. The right ventricle pumps the blood to the lungs, where ...