Repetition Training - Basic Lung Sounds Rhonchi - Low Pitched Wheezes Lesson Waveform Anatomy play pause Table of Contents 1Crackles - Fine (Rales) 2Crackles - Coarse (Rales) 3Wheeze 4Rhonchi - Low Pitched Wheezes 5Bronchial 6Pleural Rubs Quiz This video is an animation of Rhonchi - Low Pitched Wheezes A#421 (lesson# 4) within course number 4. Low pitched wheezes (rhonchi) are continuous, both inspiratory and expiratory, low pitched adventitious lung sounds that are similar to wheezes. They often have a snoring, gurgling or rattle-like quality. Rhonchi occur in the bronchi. Sounds defined as rhonchi are heard in the chest wall where bronchi occur, not over any alveoli. Rhonchi usually clear after coughing.