Question

multiple choice question
the outer surface of each lung is tightly covered by
o respiratory bronchi
o parietal pleura
o mediastinum
o visceral pleura

Explanation:

• Respiratory bronchi: These are part of the bronchial tree within the lungs, not covering the outer surface.
• Parietal pleura: Lines the thoracic cavity, not the lung surface.
• Mediastinum: Space between the lungs, not a covering of the lung.
• Visceral pleura: The serous membrane that tightly covers the outer surface of each lung.

Answer:

visceral pleura