Question

infection of bronchus and bronchioles​

Answer 1

Answer:

Acute bronchitis usually follows a viral upper respiratory tract infection that extends into the trachea, bronchi, and bronchioles and results in a hacking cough and sputum production. The inflammation results in hypersecretion of mucus in the bronchial airways.

Explanation:

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Answer 2

Answer:

Acute bronchitis usually follows a viral upper respiratory tract infection that extends into the trachea, bronchi, and bronchioles and results in a hacking cough and sputum production. The inflammation results in hypersecretion of mucus in the bronchial airways.

Explanation:

Viruses cause 85% to 95% of cases of acute bronchitis in healthy adults. The most common viruses are rhinovirus, adenovirus, influenza A and B, and parainfluenza virus; bacteria are usually commensals. Bacteria can cause bronchitis in people with underlying health problems.