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 found 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 diox ...
, and is reguarded as the bicuspid or
mitral valve
The mitral valve (), also known as the bicuspid valve or left atrioventricular valve, is one of the four heart valves. It has two cusps or flaps and lies between the left atrium and the left ventricle of the heart. The heart valves are all one- ...
.
References
External links
Cardiac anatomy
{{circulatory-stub