Which of the following is the correct statement regarding the path of blood as it travels through the heart?

Question

Quizplus · Accepted Answer

To understand the normal anatomy of the heart, one can trace the path of blood as it travels through the heart. This begins with deoxygenated venous blood that enters the right atrium (RA) from one of three sources. Venous blood from organs superior to the heart drains to the RA by way of the superior vena cava (SVC). Venous blood from organs below the heart enters the RA via the inferior vena cava (IVC). The coronary sinus drains venous blood supplying the heart muscle itself. During ventricular diastole, blood is pumped from the RA into the right ventricle (RV) via the tricuspid valve (TV). During ventricular systole, blood is ejected from the RV into the pulmonary arteries through the pulmonary valve. In the lungs, oxygen diffuses from inspired air into the plasma and red blood cells, and carbon dioxide diffuses from plasma into the alveolus. Oxygenated blood returns to the heart via four pulmonary veins which are confluent with the left atrium (LA). During ventricular diastole, blood passes through the mitral valve and into the left ventricle (LV). Finally, the blood is pumped out of the LV, through the left semilunar valve, or aortic valve, and into the aorta, the main vessel supplying systemic blood flow to the entire body. Pneumoperitoneum confirms a perforated viscus necessitating operation.

Which of the Following Is the Correct Statement Regarding the Path