The lungs are covered with?

The lungs are cone-shaped organs that sit in the chest cavity. The apex of each is under the collarbone. Each lung is divided into lobes by fissures.

The lungs are made up mainly of millions of alveoli and consist mostly of spaces filled with air. This makes them spongy in appearance and despite their size relatively light. The remainder of the lungs is made up of pulmonary connective tissue, much of which is elastic.

The outer surfaces of the lungs are covered with a membrane called the pleura.