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Which blood vessel carries oxygenated blood from the heart to the body?
- Pulmonary artery
- Pulmonary vein
- Aorta
- Vena cava
Answer: Aorta
The aorta is the main artery carrying oxygen-rich blood from the left ventricle to systemic circulation. Pulmonary artery carries deoxygenated blood to lungs. Critical for understanding human physiology. [[NCERT Biology Class 11]]