1) inferior vena cava
2) superior vena cava
3) coronary sinus
4) pulmonary artery
Answer:3) coronary sinus
Explanation: The deoxygenated blood from the heart muscles drains into the coronary sinus. The coronary sinus transfers it to the right auricle.
Watch the video below to get a detailed explanation of this question and related questions.

Also Check:
- Lymphocytes
- What Are Erythrocytes?
- Granulocytes
- What Is Coronary Circulation?
- What Is the Path of Systemic Circulation?
- What Type Of Circulation Do Humans Have?
- What Does QRS Complex Represent In ECG?
- Important Notes Of Biology For NEET Body Fluids And Circulation
Stay tuned to BYJU’S to learn similar NEET Questions.