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Structure of the Heart: The human heart is a shell. There are four open spaces inside the heart that fill with blood; these are called cavities. ... The two atria form the curved top of the heart. The ventricles meet at the bottom of the heart to form a pointed base, which points toward the left side of your chest. The left ventricle contracts most forcefully, which is why you can feel your heart beat more on the left side. A wall, called the septum, separates the right and left sides of the heart. ... The top of the heart connects to a few large blood vessels. The largest of these is the aorta, or main artery, which carries nutrient-rich blood away from the heart. Another important vessel is the pulmonary artery, which connects the heart with the lungs as part of the pulmonary circulation system.
Cardiovascular Disease: Cardiovascular disease is the Nations leading killer for both men and women, and among all racial and ethnic groups. One person dies every 30 seconds from this disease, resulting in 2600 people per day. Almost one million Americans die of this disease each year, which adds up to 42% of all deaths; in 160,000 of those deaths the individuals were 35 to 64 years old. ... Heart disease and stroke account for almost 6 million hospitalizations each year and cause disability for almost 10 million Americans age 65 years and older. ...
Congenital Heart Disease: are defects present from birth, and effect a little less than 1% of all children. The heart starts in the embryo as a simple tube, and must twist and rotate, cavitate, form valves, etc.
Approximate Word count = 1327
Approximate Pages = 5.3
(250 words per page double spaced)
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