Tags: Disease.
Pulmonary aspiration is the entry of material (such as pharyngeal secretions food or drink or stomach contents) from the oropharynx or gastrointestinal tract into the larynx (voice box) and lower respiratory tract (the portions of the respiratory system from the trachea–i.e. windpipe–to the lungs). A person may either inhale the material or it may be delivered into the tracheobronchial tree during positive pressure ventilation.