cochlear canaliculus a small canal in the petrous part of the temporal bone that interconnects the scala tympani with the subarachnoid space; it houses the perilymphatic duct and a small vein. dental canaliculi minute channels in dentin, extending from the pulp cavity to the overlying cement and enamel.
Lung infarction. Lung infarction, death of one or more sections of lung tissue due to deprivation of an adequate blood supply. The section of dead tissue is called an infarct. The cessation or lessening of blood flow results ordinarily from an obstruction in a blood vessel that serves the lung.
Pleurodesis. If the lung re-inflates after the fluid has been drained, it may be possible to seal the two layers of the pleura together to prevent the fluid from building up again. This is known as pleurodesis. It is usually done using a sterile talc that is injected through the drain.