JAMB - Biology (2005 - No. 19)
The mammalian lung is made air tight by the
pleural cavity
mucous membrane
pleural membrane
diaphragm
توضیح
The pleural membrane, which surrounds each lung, creates an airtight seal, forming a closed space called the pleural cavity, which is essential for efficient breathing.
The pleura is a thin, moist membrane that envelops each lung and lines the inner surfaces of the chest wall and diaphragm.