Blausen Medical
Blausen Medical

Blausen Medical

Medically accurate and informative 3D animations


Calcium Channel Blockers

The circulatory system is made up of the heart and blood vessels that carry blood throughout the body. Calcium is a mineral that is needed in order for the heart muscle to pump. Calcium also is involved with the muscles that narrow and widen blood vessels. By moving in and out cells through tiny pores or channels, calcium can help regulate blood pressure. When calcium levels become too low or too high, this may lead to a tightening of the blood vessels, creating higher blood pressure and may also result in heart muscles contracting abnormally. At times, pain in the chest may occur due to spasm of the blood vessels that surround the heart. This is known as angina. When this occurs, the vessels will narrow and increase their resistance to blood flow, forcing the heart to work harder. If left untreated, high blood pressure can seriously damage the heart and blood vessels by adding to their workload. This can result in congestive heart failure, stroke, heart attack, kidney damage, aneurysms, or even death. Calcium channel blockers (CCBs) are often prescribed for angina and high blood pressure. CCBs block the channels that allow calcium to move in and out, slowing the rate at which calcium passes into the heart muscle and vessel walls. Blood vessels relax, allowing blood to flow more freely and resulting in lowered blood pressure. In addition, the heart's pumping strength is reduced. Common side effects of calcium channel blockers include heartburn, fatigue, and swelling of the feet, abdomen, or ankles. Calcium channel blockers may conflict with foods and other drugs. Talk to your doctor about your medical history and diet before taking these medications.

Duration: 02:00
Licence: All rights reserved
Original Language: English
Published: 11/20/2015
Diseases and Conditions: Angina / High Blood Pressure
Format: 3D Animation

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Calcium Channel Blockers

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