Question

the valve which guard the opening between the left auricle and left ventricle​

Answer 1

Answer:

bicuspid valve or left atrioventricular valve

Explanation:

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Answer 2

Answer:

The mitral valve (/ˈmaɪtrəl/), also known as the bicuspid valve or left atrioventricular valve, is a valve with two flaps in the heart that lies between the left atrium and the left ventricle.