MEDICAL PHYSIOLOGY

Detailed explanation-1: -Both the superior vena cava and inferior vena cava empty blood into the right atrium. Blood flows through the tricuspid valve into the right ventricle. It then flows through the pulmonic valve into the pulmonary artery before being delivered to the lungs.

Detailed explanation-2: -Arteries carry blood away from the heart and into the organs – where it splits into arterioles, and further into capillaries. These then join to form venules, which join again to form veins, which carry blood back from an organ to the heart.)