Respiratory System

No. Lungs         
1. Lungs are the chief respiratory organs.
2. Lungs are made up of Alveoli.
3. Right lung has three lobes. Left lung has two lobes.
4. Pleura membranes enclose the Lungs and Protects the Lungs from injury.
5. The Pulmonary Vein carries oxygenated blood from Lungs to Heart.
6. The artery which brings deoxygenated blood from heart to lungs is called Pulmonary Artery.
7. Gas exchange takes place in Alveoli.