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.
A Honor Society of Nursing (STTI) answered. Asthma affects the body by limiting the flow of air into the lungs. When certain substances trigger an asthma attack, cholinergic receptors in the airways respond by tightening the muscles.This process is called bronchoconstriction.It triggers a sequence of reactions in the body, which contributes to increased inflammation and mucus secretions. An asthma attack -- or an asthma exacerbation -- can be very frightening. You may cough, have difficulty breathing, or feel a shortness of breath.As you breathe out, you may hear a wheezing or whistling sound which may go away if your airway becomes more constricted.n asthma attack -- or an asthma exacerbation -- can be very frightening. You may cough, have difficulty breathing, or feel a shortness of breath. As you breathe out, you may hear a wheezing or whistling sound which may go away if your airway becomes more constricted.