Question

multiple choice question
the azygous fissure is made of how many layers of pleura?
please select your answer...
a 1
b 2
c 3
d 4

Explanation:

The azygous fissure is formed when the azygous vein invaginates the right lung during development. It consists of four layers of pleura: two layers of parietal pleura (one from the mediastinal pleura and one from the costal pleura) and two layers of visceral pleura (from the right lung).

Answer:

D. 4