Question

which of the following statements regarding the lungs is false? a the lungs are divided into lobes. b serous fluid is located between the two layers of the pleura. c the lungs are located within the pleural cavity. d the mediastinum of the thoracic cavity is located between the lungs and diaphragm.

Explanation:

• Option A: Lungs are divided into lobes (3 in right, 2 in left).
• Option B: Serous fluid exists between pleura layers for lubrication.
• Option C: Lungs are in pleural cavity.
• Option D: Mediastinum is between lungs, not between lungs and diaphragm.

Answer:

D. The mediastinum of the thoracic cavity is located between the lungs and diaphragm.