Question

11. Where is impure blood collected in heart?​

Answer 1

Answer:

The impure blood enters the heart from two large veins called the superior and inferior vena cava. The blood from these veins enters the right upper chamber known as the Right Atrium. This chamber also receives impure blood from the heart veins through the coronary sinus.

Explanation:

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Answer 2

Explanation:

The impure blood enters the heart from two large veins called the superior and inferior vena cava. The blood from these veins enters the right upper chamber known as the Right Atrium. This chamber also receives impure blood from the heart veins through the coronary sinus.