3d rendering of a pair of healthy human lungs with a focus on the intricate network of passageways and air sacs

render pair healthy human lung focus intricate network passageway upper condition diagram bronchiolar cancer pneumonia organ alveolus pleura bronchus empyema oxygen distress alveoli healthcare thorax infection exchange tissue vascular disease medical system diaphragm function trachea lower aerobic bronchial rendering lungs passageways air sacs generative