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2. 105 Fun Facts About Science, History, Celebrities, and More - AOL

   www.aol.com/heres-103-fun-facts-actually...

   Ace trivia night with these cool and random fun facts for adults and kids. This list of interesting facts is the perfect way to learn something new about life. 105 Fun Facts About Science, History ...

3. 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 ...

4. 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]

5. Endocardium - Wikipedia

   en.wikipedia.org/wiki/Endocardium

   Illustration depicting the layers of the heart wall including the innermost endocardium. The endocardium (pl.: endocardia) is the innermost layer of tissue that lines the chambers of the heart. Its cells are embryologically and biologically similar to the endothelial cells that line blood vessels. The endocardium also provides protection to the ...

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

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   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. 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]

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. This Full-Body Workout Could Help Slow Signs Of Aging, New ...

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   Kettlebells have been used in strength training for years. But new research suggests these weights may do more than build muscle: They could slow down aging.. That’s the major takeaway from a ...