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.
Lung scarring. Lung scarring: Introduction. Lung scarring: Damage to the lung tissue from and cause can cause scarring of the lung tissue. Small scars generally cause no problems but large or widespread scarring can affect breathing. Causes of lung scarring include pneumonia, lung infections, cystic fibrosis, asbestosis, silicosis and sarcoidosis and tuberculosis.