ANATOMY

Detailed explanation-1: -The walls of the left ventricle are about 3 times thicker from the right ventricle, while the atria acts as a collecting chamber for the blood which is starting to the heart thus have thin walls. Also, they have to force the blood into the ventricles that lie just below there thus atria have thin walls. Q.

Detailed explanation-2: -A ventricle is one of two large chambers toward the bottom of the heart that collect and expel blood towards the peripheral beds within the body and lungs. The blood pumped by a ventricle is supplied by an atrium, an adjacent chamber in the upper heart that is smaller than a ventricle.

Detailed explanation-3: -The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria.

Detailed explanation-4: -The walls of the atria are thinner than the ventricle walls because they have less myocardium. The myocardium is composed of cardiac muscle fibers, which enable heart contractions. The thicker ventricle walls are needed to generate more power to force blood out of the heart chambers.

Detailed explanation-5: -Location and external features. The right ventricle is the smaller of the two lower chambers of the heart–it is only one-third of the thickness of its counterpart. In spite of the size disparity, the right ventricle still pumps the same volume of blood as the left ventricle.