What is the physiological function of right ventricle?

The right ventricle is one of the four chambers of the heart, specifically responsible for the "lower-pressure" side of the circulatory system. It receives deoxygenated blood from the right atrium and propels it into the pulmonary trunk. Unlike the thick-walled left ventricle, the right ventricle is thinner because it pumps against the relatively low vascular resistance of the lungs. Its coordinated contraction is essential for maintaining efficient gas exchange in the alveolar capillaries. Rationale: A. Pumping blood into systemic circulation is the primary function of the left ventricle. The left ventricle must generate enough force to propel oxygenated blood through the aorta to the rest of the body. Because systemic resistance is much higher than pulmonary resistance, the left ventricle is significantly more muscular and thick-walled than the right ventricle. B. Receiving blood from the pulmonary circulation is the role of the left atrium. After blood is oxygenated in the lungs, it returns via the pulmonary veins to the left side of the heart. The right side of the heart only deals with deoxygenated blood returning from the body. This distinction is fundamental to the dual-circuit nature of the human cardiovascular system. C. Receiving blood from the left atrium is the function of the left ventricle. The mitral valve opens to allow oxygenated blood to flow from the atrium into the ventricle. The right ventricle, however, receives deoxygenated blood from the right atrium via the tricuspid valve. Mixing of these two pathways only occurs in the presence of pathological septal defects. D. To pump blood into pulmonary circulation is the defining physiological role of the right ventricle. Upon contraction (systole), the right ventricle ejects blood through the pulmonary valve into the pulmonary arteries. This allows the blood to reach the lungs for carbon dioxide removal and oxygen uptake. This function is critical for maintaining systemic oxygenation and acid-base balance.