upper respiratory
- nasalOf the nose
- sinusAir-filled cranial cavity
- throatNeck's inner passage
- tracheaRespiratory airway tube
- congestionExcessive accumulation causing blockage
mucus · cough · sneeze · phlegm · airway · breathing · larynx · pharynx · nostril · infection · cold · flu · stuffy · wheezing · inhale · swollen · drip · inflammation