Vocal Fremitus - Vocal cords create vibrations in the tracheobronchial tree - Vibrations can be felt through the lungs and chest wall - Tactile fremitus is assessed by placing palms on the chest wall - Increase in tactile fremitus indicates denser or inflamed lung tissue - Decrease in tactile fremitus suggests air or fluid in pleural spaces or decreased lung tissue density

Pleural Fremitus - Palpable vibration of the thorax wall caused by friction between pleura - Auditory analog is pleural friction rub

Dental Fremitus - Fremitus occurs when teeth move - Assessed by feeling and looking at teeth when mouth is opened and closed

Periodontal Fremitus - Occurs in alveolar bones due to trauma from occlusion - Teeth rubbing against expanded socket walls causes fremitus - Severity of periodontal disease can be determined through fremitus test

Rhonchal Fremitus - Palpable vibration produced during breathing - Caused by partial airway obstruction - Obstruction can be due to mucus, bronchial hyperreactivity, or tumors - Auditory analog is rhonchus