In a resting person every minute 20 percent of the blood enters the

Kidney

Explanation:

Nearly 1200 ml of blood flows through kidney every minute. This amount of blood constitutes nearly 20-25% of the total blood volume in the human body which is equal to 5000 ml or five liters.  

The nephrons with in the kidneys are responsible for cleaning or filtering the blood that enters into it. It is also responsible for regulating the blood volume

one centimetre is equal to 0.01 metres