<prompt> Palpatory thud, an audible snap is seen inTracheal foreign bodyBronchial foreign bodyLaryngeal foreign bodyForeign body in ear  <response>: A foreign body in trachea may move up and down the trachea between the carnia and the undersurface of vocal cords causing audible slap and palpatory thud;.Symptoms and signs of foreign bodies at different levelsSite of foreign bodiesSymptoms and signsLarynxChoking, Cyanosis, Complete obstruction leading to death Paial obstruction: stridor, hoarseness, cough, respiratory difficultyTrachea Choking, stridor, wheeze, cough, palpatory thud, audible slap Cough, wheeze and diminished air entry to lung forms a triadBronchi Respiratory distress with swelling of the foreign body Lung collapse, emphysema, pneumonitis, bronchiectasis or lung abscess are late featuresRef: Hazarika; 3rd ed; Pg 651 