Two types of lung sounds

Lung sounds are generally broken down into two types:

1. Quantitative:  How much air movement is there? Normal (can hear air movement), diminisshed (can't hear much), absent (barely moving air)
2. Qualitative:  How is it moving?  Is it moving through secretions (rhonchi), through junk in lungs (such as a tumor or object), or through obstruction (wheeze)