Question

answered in one sentence name the value between left atrium and ventricle and given its significance​

Answer 1

Answer:

Explanation:

The atrium (Latin ātrium, “entry hall”) is the upper chamber through which blood enters the ventricles of the heart. There are two atria in the human heart – the left atrium receives blood from the pulmonary (lung) circulation, and the right atrium receives blood from the venae cavae (venous circulation). The atria receive blood while relaxed (diastole), then contract (systole) to move blood to the ventricles. All animals with a closed circulatory system have at least one atrium. Humans have two atria.

The atrium was formerly called the "auricle"; that term is still used to describe this chamber in some other animals, such as the Mollusca.

Also of importance in maintaining the blood flow are the presence of atrial volume receptors. These are low-pressure baroreceptors in the atria, which send signals to the hypothalamus when a drop in atrial pressure (which indicates a drop in blood volume) is detected. This triggers a release of vasopressin.[17]

Answer 2

Answer:

Mitral valve.This lets even more blood to flow into the left ventricle. When the left ventricle contracts, the mitral valve closes and the aortic valve opens. This is so blood flows into the aorta and out to the rest of the body.