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Question

Coronary sinus opens into which of the following chambers of the heart
  1. Left atrium
  2. Right atrium
  3. Left ventricle
  4. Right ventricle


Solution

The correct option is B Right atrium
Heart muscles are supplied with oxygenated blood by a network of blood vessels that form coronary circulation. It begins with coronary artery in the left ventricle and ends as coronary sinus in the right atrium.

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