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.
Regardless of what causes the hole in the lung, the hole allows air to leak out of the lung. Because the air is inside the body, it has no where to go. The air takes up space that the lung usually needs and the lung collapse. To get the lung to re-inflate, doctors need to put a tube through the ribs into the chest. This is called a chest tube.