| atrial |
In anatomy, the atrium (plural: atria) is the blood collection chamber of a heart. It has a thin-walled structure that allows blood to return to the heart. There is at least one atrium in an animal with a closed circulatory system. In fish, the circulatory system is very simple: a two-chambered heart including one atrium and one ventricle. In vertebrate groups that evolved later, the circulatory system is much more complicated. ...
Ãâó: en.wikipedia.org/wiki/Atrial
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| atrial fibrillation |
Atrial fibrillation (AF or AFib) is a cardiac arrhythmia (an abnormality of heart rate or rhythm) originating in the atria. Abnormal electrical impulses in the atria cause the ventricles to contract erratically. AF is the most common cardiac arrhythmia. If rapid, it may compromise blood flow and cause fainting, orthostatic hypotension (low blood pressure on standing up) or low blood pressure. ...
Ãâó: en.wikipedia.org/wiki/Atrial_fibrillation
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| atrial septal defect |
Abnormal development of the atrial septum in humans, which leads to a persistent communication between left and right atria, generally progressing to right heart failure in the middle years of life.
Ãâó: www.nature.com/nrg/journal/v3/n7/glossary/nrg843_g...
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| atrioventricular |
A relay station between the atria and ventricles that causes a delay in the electrical impulse to permit the atria to finish contracting (emptying) before ventricular contraction
Ãâó: www.ehealthmd.com/library/palpitations/PAL_glossar...
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| atrial flutter |
A heart condition in which the atria (chambers of the heart that receive the blood) contract rapidly, irregularly, and independently of the ventricles (the chambers of the heart that pump the blood). This greatly decreases the efficiency of the heart and its ability to move blood.
Ãâó: www.peteducation.com/dict_alpha_listing.cfm
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