The pleura in the thoracic cavity is an example of a _____ membrane.Group of answer choicesmucousserouscutaneoussynovial

The pleura in the thoracic cavity is an example of a serous membrane.

Explanation:

Serous membranes are thin layers of tissue that cover internal cavities and organs of the body, providing lubrication and reducing friction during movement. The pleura specifically surrounds the lungs and lines the thoracic cavity, producing serous fluid that allows the lungs to expand and contract smoothly within the chest.

In contrast:

1. Mucous membranes line cavities that open to the outside of the body (like the respiratory tract).
2. Cutaneous membranes refer to the skin, which is the outer covering of the body.
3. Synovial membranes are found in joints, secreting synovial fluid to lubricate them.

Thus, the correct answer is serous.