Question

Write the correct sequence of steps followed during the journey of oxygen-rich blood from the lungs to various organs of the human body.

Answer 1

Circulation

1. Circulation is the orderly movement of blood through the blood vessels.
2. It is pumped up by the heart, and the flow of blood is in a cyclic manner.

Steps followed during circulation are:

1. The pulmonary veins carry the oxygenated blood from both the lungs to the left atrium.
2. From here, the blood enters the left ventricle.
3. The left ventricle passes the pumped blood from the aorta to different organs of the human body.