When most peeps think of the word "heart" they think of love, romance and amazingly powerful life-sustaining organ.
Pump Up the Oxygen 9173k
To put it simply, your heart is blood supplies oxygen to your entire body. If you don't get oxygen for more than a few minutes, you'll die.
Basic Anatomy 285d4q
Your heart is a cone-shaped muscle in the middle of your chest, right between chambers, which each have a valve that allows blood to flow in, but prevents blood from flowing backwards.
In Action 5y3z47
The heart squeezes blood out and into the rest of the circulatory system when it contracts. When it expands, it sucks in poorly oxygenated blood and pushes through the chambers and into the pulmonary artery, where it is re-oxygenated. Then the blood makes its way out of the heart via the aorta and back into the body where it provides your cells with oxygen.
Did U Know? 2e1m37
- In the average person's life, their heart will beat 2.5 billion times.
- Heart disease is the leading cause of death in North America. More than 2,000 Americans die from heart disease everyday.
- Your heart is about the size of your fist.
