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Jun 4, 2018 · This knowledge answers the query about the heart by explaining the only valid definition of heart structure involves describing a mechanical architecture whose motion can account for all dynamic cardiac movements.
Stay in the know on heart functionality, heart disease and heart conditions with Scripps glossary of cardiology terms. Learn more with Scripps Heart Care.
Heart: The human heart is located in the thoracic cavity, between the lungs in the space referred to as the mediastinum. The best way to describe the heart is a pump. Its contractions create pressure that sends blood into the major vessels, including the aorta. From there, the blood is distributed to the rest of the body.
Jan 11, 2021 · The shape of the heart is generally likened to a pyramid. The apex points downwards, forwards and to the left while the base faces posteriorly and to the right. While the cardiac apex is usually represented by the vortex of the left ventricle, the cardiac base is less well defined owing to differences in definition.
After studying this chapter, you will be able to: Describe the size, shape, and location of the heart. Identify and describe the interior and exterior parts of the human heart. Describe the path of blood through the cardiac circuits.
The heart is a fist-sized vital organ that has one job: to pump blood. If one assumes an average heart rate of 75 beats per minute, a human heart would beat approximately 108,000 times in one day, more than 39 million times in one year, and nearly 3 billion times during a 75-year lifespan.
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The heart is located behind the sternum; however, it normally lies “down” with the apex pointing toward the left side. This chapter provides a succinct overview of the gross anatomy of the heart and its blood vessels as well as some clinical aspects pertinent to its structure.
