Serous Membranes

Question

Serous membranes
A) line all cavities that open to the outside.
B) cover the brain and spinal cord.
C) are connective tissue membranes.
D) line the abdominopelvic and thoracic cavities.

Accepted Answer

Serous membranes line the internal cavities of the body, including the abdominopelvic and thoracic cavities. They do not line cavities that open to the outside, such as the respiratory or digestive tracts. Additionally, serous membranes are not connective tissue membranes but rather a type of epithelial membrane. While they do cover organs, including the brain and spinal cord, their primary function is to line body cavities and reduce friction during movement.