What would be the—can you describe the covering around the apex of the pleural sac, the nature of its protection.
pleural pieces: the lateral sclerites of the thorax; see pleura.
Pus is never found in the lungs or within the pleural cavities in pure unmixed septicmia.
The lateral are the pleural and the ventral are the pedal ganglia.
There were several small matchstick size fragments of rib within the pleural cavity.
The term medium (pleural media) is applied to the substance or substances through the pores of which the liquid percolates.
These outgrowths have the appearance of, and might have been derived from, the pleural lobes of trilobites.
The pleural cavities commonly contain a serous fluid, or, in rare cases, a copious effusion of blood.
An accumulation of gas in the pleural sac is known as pneumothorax.
Traces of inflammation and discoloration by sanguineous staining are traceable on the pleural surfaces.