Which organ is responsible the pumping blood in the human body?

Which organ is responsible the pumping blood in the human body?

انسانی جسم میں خون پمپ کرنے کا ذمہ دار کون سا عضو ہے؟
Explanation

The heart is the organ responsible for pumping blood throughout the human body.

It ensuring that oxygen and nutrients are delivered to tissues and organs.