The left atrioventricular orifice (left atrioventricular opening or mitral orifice) is placed below and to the left of the
aortic orifice.
It is a little smaller than the corresponding aperture of the opposite side.
It is surrounded by a dense
fibrous ring, covered by the lining membrane of the
heart
The heart is a muscular organ in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to t ...
, and is reguarded as the bicuspid or
mitral valve.
References
External links
Cardiac anatomy
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