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.
Bibasilar atelectasis is a partial or complete collapsing of the lungs or lobe of lungs when alveoli, the tiny air pockets become deflated. This condition causes problems in breathing and may occur after a surgery.Atelectasis may also occur due to other problems like cystic fibrosis, lung tumor, inhalation of foreign objects, accumulation of fluid in lungs, chest injuries, and severe asthma.Usually the tissue damage varies depending on the causal factor.oreover, pneumonia is another cause of nonobstructive atelectasis. A large tumor outside the lungs can press against this organ causing deflation rather than blocking the airways thus causing atelectasis. Other causes are scarring of lung tissue from injury, surgery, or a lung disease.