Question

fill in the blank question
sinusitis results when the are blocked with nasal congestion,
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Explanation:

Sinusitis is an inflammation of the sinuses. The sinuses are air - filled cavities in the skull. When the sinus passages (also known as sinus drainage pathways) are blocked (usually due to nasal congestion from a cold, allergies, etc.), mucus can accumulate in the sinuses. This accumulation can lead to bacterial, viral, or fungal growth (in some cases) and the resulting inflammation is sinusitis.

Answer:

sinus passages