Physiology of cardiovascular system pdf

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The heart is the life-giving, ever-beating muscle in your chest. From inside the womb until death, the thump goes on. At 80 years of age, a person’s heart will continue to beat an average of 100,000 times a day. Many believe that the heart is the first organ to become functional.

Within weeks of conception the heart starts its mission of supplying the body with nutrients even though the embryo is no bigger than a capital letter on this page. The primary function of the heart is to pump blood through the arteries, capillaries, and veins.

There are an estimated 60,000 miles of vessels throughout an adult body. Blood transports oxygen, nutrients, disease causing viruses, bacteria, hormones and has other important functions as well.

The heart is the pump that keeps blood circulating properly. Americans today have many options to take care of their heart and circulatory system. Expanding medical technology has made it much easier to do so.