Question

Why is blood circulation in human heart called double circulation?

Answer 1

Blood circulation in human heart called as double circulation.

because the blood enters into our heart for two times.

:-)hope it helps u.

Answer 2

Answer:

The circulation of blood in the heart is known as double circulation because blood flows in two cycles in the hear.

Explanation:

The two cycles are:

• Systemic circulation
• Pulmonary circulation.

Systemic circulation is the circulation of blood from the vena cava into the auricle .

Pulmonary circulation is the flow of blood through the pulmonary vein into the heart again the out though the auricle.