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2. Anatomy of the human heart - Wikipedia

   en.wikipedia.org/wiki/Anatomy_of_the_human_heart

   The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...

3. Heart - Wikipedia

   en.wikipedia.org/wiki/Heart

   The heart is a muscular organ found in most animals.This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2] The pumped blood carries oxygen and nutrients to the tissue, while carrying metabolic waste such as carbon dioxide to the lungs. [3]

4. Cardiology - Wikipedia

   en.wikipedia.org/wiki/Cardiology

   The heart is located in the middle of the abdomen with its tip slightly towards the left side of the abdomen. Disorders of the heart lead to heart disease and cardiovascular disease and can lead to a significant number of deaths: cardiovascular disease is the leading cause of death in the U.S. and caused 24.95% of total deaths in 2008. [19]

5. 10 Surprising Facts You Didn’t Know About Your Heart - AOL

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6. 11 Surprising Heart Disease Facts You Should Know - AOL

   www.aol.com/lifestyle/11-surprising-heart...

   Here’s a fact: Heart disease kills more people worldwide, including in the U.S., than any other cause, according to the Centers for Disease Control and Prevention (CDC). Nearly half of American ...

7. Circulatory system - Wikipedia

   en.wikipedia.org/wiki/Circulatory_system

   The heart did not pump blood around, the heart's motion sucked blood in during diastole and the blood moved by the pulsation of the arteries themselves. Galen believed that the arterial blood was created by venous blood passing from the left ventricle to the right by passing through 'pores' in the interventricular septum, air passed from the ...

8. Heart development - Wikipedia

   en.wikipedia.org/wiki/Heart_development

   The heart is the first functional organ in vertebrate embryos. The tubular heart quickly differentiates into the truncus arteriosus, bulbus cordis, primitive ventricle, primitive atrium, and the sinus venosus. The truncus arteriosus splits into the ascending aorta and the pulmonary trunk. The bulbus cordis forms part of the ventricles.

9. Small bursts of activity can slash heart risks for women - AOL

   www.aol.com/news/small-bursts-activity-slash...

   Even the less-active women who averaged just 1.5 minutes of intense movement daily lowered their risk of serious heart problems, heart attack, and heart failure by 30%, 33% and 40%, respectively ...