Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Circulatory Processes
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Learn what important blood cells called platelets do.
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Heart tests can help your doctor find out if you are at risk for a heart problem, if you have a heart problem, and what treatment you need. There are many heart tests. Most are noninvasive, which means that your doctor does not insert a device into your body for the test. Many of the tests provide still or moving...
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For the body to function properly, the heart needs to pump blood at a sufficient rate to maintain an adequate and continuous supply of oxygen and other nutrients to the brain and other vital organs. Cardiac output is the term that describes the amount of blood your heart pumps each minute. Doctors think about cardiac...
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The heart is at the center of your circulatory system, which is a network of blood vessels that delivers blood to every part of your body. Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly. Your heart is a muscle, and its job is to pump blood throughout...
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The coronary arteries deliver blood to the heart muscle, providing a continuous supply of oxygen and nutrients needed for it to stay healthy and function normally. Supply and demand The coronary arteries regulate the supply of blood to your heart muscle depending on how much oxygen your heart needs at the time, as...