MICROANATOMY

Detailed explanation-1: -There are two atria (upper chambers) called your right atrium and left atrium. In addition, there are two ventricles (lower chambers) called your right ventricle and left ventricle. Each chamber plays an important role in your heart’s functioning.

Detailed explanation-2: -The atrium was formerly called the ‘auricle’. That term is still used to describe this chamber in some other animals, such as the Mollusca. They have thicker muscular walls than the atria do.

Detailed explanation-3: -The four chambers of the heart On each side of the wall, there is a small collecting chamber called an ‘atrium’, which leads into a large pumping chamber called a ‘ventricle’. There are four chambers: the left atrium and right atrium (upper chambers), and the left ventricle and right ventricle (lower chambers).

Detailed explanation-4: -A typical heart has two upper and two lower chambers. The upper chambers-the right and left atria-receive incoming blood. The lower chambers-the right and left ventricles-pump blood out of your heart.

Detailed explanation-5: -The right atrium is usually slightly smaller than the left one, and is largest in the superior inferior extension. To a certain degree the size and shape of the right atrium is also influenced by the dimensions of the left atrium.