Question

In the human heart, which chamber receives oxygenated blood from the lungs?

• A. Right atrium
• B. Right ventricle
• C. Left atrium
• D. Left ventricle

Hint:

In heart anatomy, remember that the left side handles oxygenated blood (lungs to body), and the right side handles deoxygenated blood (body to lungs). The atria receive blood, while ventricles pump it out.

Answer 1

The Correct Option is C

The human heart consists of four chambers: two atria (upper chambers) and two ventricles (lower chambers). The left atrium receives oxygenated blood from the lungs via the pulmonary veins. This blood is then pumped into the left ventricle, which distributes it to the rest of the body through the aorta.
The roles of the other chambers are:
- Right atrium: Receives deoxygenated blood from the body via the superior and inferior vena cava and pumps it into the right ventricle.
- Right ventricle: Pumps deoxygenated blood into the pulmonary arteries, which carry it to the lungs for oxygenation.
- Left ventricle: Receives oxygenated blood from the left atrium and pumps it into the aorta for systemic circulation, but it does not directly receive blood from the lungs.
Thus, the chamber that receives oxygenated blood from the lungs is the left atrium.