Question

Lungs are enclosed in/covering around lungs in

• A. Pericardium
• B. Pleural membrane
• C. Peritoneum
• D. Perichondrium

Answer 1

The correct option is B

Pleural membrane

The correct option is (B).

Explanation of the correct option:

1. The lungs are enclosed in the two-layered pleural membrane.
2. The presence of a pleural membrane is essential for the process of breathing as it allows optimal contraction and expansion of the lungs.
3. The pleural fluid produced by the pleural membrane acts as a lubricant to prevent friction between the membranes.

Explanation of the incorrect options:

Option (A):

1. The pericardium is the membrane that is found around the heart.
2. It helps in holding the heart in its place and protects the organ from mechanical stress.

Option (C):

1. The peritoneum is defined as the membrane which lines the abdominal cavity.
2. It is responsible for the protection of abdominal organs from mechanical stress.

Option (D):

1. The perichondrium is defined as the connective tissue layer which surrounds the cartilage.
2. It is absent at the site of joints.

Final answer: The lungs are enclosed in pleural membranes.