Artificial Heart Valves, by Nicole Raia and David Ferreira: Difference between revisions
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===Potential Problems=== | ===Potential Problems=== | ||
Heart valves can suffer from two main problems, regurgitation and stenosis. In regurgitation, valves are unable to fully close, resulting in a backflow of blood. | |||
==History== | ==History== | ||
Revision as of 21:03, 24 February 2014
Heart Valve Background
Function
The heart has four chambers, which are responsible for the ciculation of blood throughout the body. Heart valves are one-way valves located at the points where blood either enters or exits a chamber of the heart, with the purpose of preventing backflow of blood. The heart has four valves:
- Tricuspid valve - between the right atrium and right ventricle
- Pulmonary valve - between the right ventricle and the pulmonary artery
- Mitral valve (also known as the bicuspid valve) - between the left atrium and the left ventricle
- Aortic valve - between the left ventricle and the aorta
Heart valves consist of multiple flaps ([3]
Potential Problems
Heart valves can suffer from two main problems, regurgitation and stenosis. In regurgitation, valves are unable to fully close, resulting in a backflow of blood.
History
Types of Heart Valves
Mechanical
Mechanical heart valves are manufactured heart valve replacements, with the distinct characteristic of being very durable.
Biological (tissue)
Current Manufacturers
References
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"Anatomy and Function of the Heart Valves." URMC Online Medical Encyclopedia. N.p., n.d. Web. 24 Feb. 2014.
Notes (from file about what to keep/add to existing pages)
- Existing figures are good, please keep these!
- Find more companies that create these artificial valves.
- Can you find a video of the heart valve movement?
Side view to go along with the first image – it’s hard to make out where the valves sit from this angle.