The Lungs and Pleurae

The lungs are an essential organ which is necessary for the exchange of oxygen and carbon dioxide from the body.

The lungs are located on either side of the heart and are separated by fissures into lobes, three in the right and two lobes in the left.

Pulmonary circulation transports oxygen-depleted blood away from the heart to the lungs and returns oxygenated blood back to the heart.