The correct answer is C: Right ventricle.
Explanation:
The heart is a vital organ responsible for pumping blood throughout the body. It consists of four chambers: two atria (auricles) and two ventricles. In the process of circulation, deoxygenated blood is pumped to the lungs to receive oxygen, and oxygenated blood is then pumped to the rest of the body.
Here is a detailed explanation of the process:
1. Right atrium (auricle): Deoxygenated blood from the body enters the heart through the superior and inferior vena cava and is collected in the right atrium.
2. Right ventricle: From the right atrium, the blood flows into the right ventricle. The right ventricle is responsible for pumping deoxygenated blood to the lungs.
3. Pulmonary artery: From the right ventricle, the deoxygenated blood is pumped through the pulmonary artery, which carries it to the lungs.
4. Lungs: In the lungs, the blood picks up oxygen and releases carbon dioxide through the process of respiration.
5. Pulmonary veins: The oxygenated blood then returns to the heart through the pulmonary veins.
6. Left atrium (auricle): The oxygenated blood enters the left atrium from the pulmonary veins.
7. Left ventricle: From the left atrium, the blood flows into the left ventricle. The left ventricle is responsible for pumping oxygenated blood to the rest of the body.
It is important to note that the left side of the heart (left atrium and left ventricle) pumps oxygenated blood to the body, while the right side of the heart (right atrium and right ventricle) pumps deoxygenated blood to the lungs.
Therefore, the correct answer is C: Right ventricle, as it pumps deoxygenated blood to the lungs.