a: Gross anatomy of lung and thorax. b: Microscopic anatomy of bronchial wall. C: View of terminal airway and alveoli. d: Alveolar structure.

The trachea extends from the neck and divides into two main bronchi. Structurally similar to the trachea, the two primary bronchi are located inside the lungs. The right bronchus is slightly ...

In the throat, the trachea, or windpipe, filters the air. The trachea branches into two bronchi, tubes that lead to the lungs. Once in the lungs, oxygen is moved into the bloodstream. Blood ...