Question

Which of the following sequences is the correct pathway for systemic circulation?

• A. Right ventricle $\to$ pulmonary aorta $\to$ tissues $\to$ pulmonary veins $\to$ left auricle
• B. Left auricle $\to$ left ventricle $\to$ aorta $\to$ arteries $\to$ tissues $\to$ veins $\to$ right atrium
• C. Left auricle $\to$ left ventricle $\to$ pulmonary aorta $\to$ tissues $\to$ right auricle
• D. Right auricle $\to$ left ventricle $\to$ aorta $\to$ tissues $\to$ veins $\to$ right auricle

Answer 1

The correct option is B

Left auricle $\to$ left ventricle $\to$ aorta $\to$ arteries $\to$ tissues $\to$ veins $\to$ right atrium

Circulation of oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body is carried out by systemic circulation. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.