The cardiovascular system includes the heart and the blood vessels, and the respiratory system contains these organs which are responsible for carrying oxygen from the air to the blood stream and expelling the waste product of carbon dioxide.

The heart pumps oxygen into the blood and collects carbon dioxide from it to be expelled through the lungs. The lungs do play a very important role, but every living cell in the body is involved in this process.

Respiration is the act of burning energy from oxygen. The respiratory flow has been "kidnapped" by the larynx, or voice box, which uses it to create a multiple range of sounds so that humans can communicate vocally. These systems‘ tasks include organs which take up space in the face and neck and most of the chest.

The cardiovascular and respiratory systems are basic to life and breathing, like the beat of one‘s heart, and is an automatic function which is controlled by the brain, which aids cardiovascular fitness.

A good majority of the heart consists of a special type of muscle which works like a pump and contracts automatically to send blood to the lungs and the rest of the body. The inside of the heart is made up of four chambers: an upper chamber on the right and left side and a lower chamber also on the right and the left side.

Each half of the heart consists of an upper chamber (called the atrium) and a larger lower chamber (called the ventricle). Several large blood vessels emerge from the top and sides of the heart and deliver blood into the atrium or carry the blood out through the ventricles. If any heart disease attacks you, it will reduce your life span.