Heart Health Medical Reference

Find out what you need to know about the vena cava. Learn about these important blood vessels' location, functions, and disorders.

Find out what you need to know about the femoral artery, including associated conditions, its function, and how it may affect your health.

Find out what you need to know about the brachial artery, as well as blood supply to the arm, forearm, and hand. Learn about the location of this artery and how to keep it safe.

Find out the differences between arteries, veins, and capillaries and the role they play in your body.

Pneumopericardium is when you have gas or air in the sac around your heart. Learn about the causes, symptoms, and treatment options for this condition today.

Myocardial contusion is a bruise to the heart muscle. Learn about the causes, symptoms, and treatment options for this condition today.

Find out the differences between arteries and veins and discover the roles of each.

The location of the popliteal pulse is behind your knee. Learn more about what causes it, what to expect, and more.

Learn more about dextrocardia and its different types, symptoms, and effects on health.

Heart rate variability is the time between each heartbeat. Find out what affects your HRV, and the importance of tracking your HRV.

Cardiac output is defined as the amount of blood your heart pumps. Learn about the normal output rate, how it's measured, and causes of low cardiac output.

Ejection fraction (EF) refers to the percentage of blood being pumped out of your heart’s lower chambers. If your EF is low, you could have heart failure. Here’s what you can do.

Do you sometimes get dizzy when you stand up? That could be orthostatic hypotension.

If you have a leaky heart valve, you may have surgery to repair or replace it. Find out what to expect.

Learn about two devices -- an ICD and pacemaker -- that can help you keep your heart beating correctly.

Learn about the conditions that affect your heart and the habits that can help prevent or manage them.

Find out how to keep your numbers in check

WebMD provides information about the anatomy of the carotid artery. Find a picture, definition, and conditions that affect the artery.

WebMD provides a diagram and medical information about the anatomy of the arteries.

WebMD explains the causes, symptoms, and treatments for mitral valve prolapse.

A leaky heart valve may cause no problems or it may signify congestive heart failure. WebMD takes a look at the causes, symptoms, and treatments for a leaky heart valve.

WebMD describes the anatomy of human blood including what makes up our blood and how circulation works.

WebMD's Aorta Anatomy Page provides a detailed image and definition of the aorta. Learn about its function and location as well as conditions that affect the aorta.

WebMD's Heart Anatomy Page provides a detailed image of the heart and provides information on heart conditions, tests, and treatments.

WebMD looks at the herb astragalus root and whether or not it offers any specific heart benefits.

WebMD examines the use of arginine (L-arginine) to improve heart health. Find out where it comes from, if supplementation works, and its possible side effects.

They call HDL cholesterol your "good" cholesterol for a reason. Gather some tips for increasing your level of HDL cholesterol and boosting heart health.

Learn more from WebMD about the symptoms of low blood pressure, or hypotension, and when to call the doctor.

Learn more about the types and causes of low blood pressure, or hypotension, from the experts at WebMD.

Low blood pressure, or hypotension, may be caused by a medical condition that can be treated with medication or, for many people, lifestyle changes. Learn more about low blood pressure from the experts at WebMD.