Each lung is covered with a(n) _______, which forms a sac enclosing the lung and continues as the lining of the thoracic cavity.
A) mass of capillaries
B) pleural membrane
C) parietal pleura
D) intercostal muscle

Question

Quizplus · Accepted Answer

The pleural membrane forms a sac around each lung and continues as the lining of the thoracic cavity. Option A is incorrect as capillaries are tiny blood vessels and are not related to lung structure. Option C is partially correct, as the parietal pleura is one of the two layers of the pleural membrane, but it does not fully describe the entire structure. Option D, intercostal muscles, are important for breathing but do not directly relate to the covering of the lungs.

Each Lung Is Covered with A(n) _______, Which Forms a Sac