Question

The lungs are protected by two membranes called

• A. Pleural membranes
• B. Meninges
• C. Mucous membrane
• D. None of these

Answer 1

The correct option is A

Pleural membranes

The correct option is A.

Explanations for the correct option:

1. Lungs are respiratory organs present in vertebrates that are involved in the exchange of gases.
2. Pleura is the membrane that covers the lungs and provides a cushion to the lungs and reduces friction.
3. It consists of two layers- visceral and parietal pleura that are separated by a thin layer of pleural fluid.
4. It allows the lungs to contract and expand during breathing.

Explanations for the incorrect options:

Option B:

Meninges refers to three membranes - dura mater, arachnoid mater, and pia mater that protect the brain and spinal cord.

Option C:

The mucous membrane is the delicate inner lining of organs such as the nose, mouth, lungs, and stomach.

Final answer: The lungs are protected by two membranes called pleural membranes.