What is the name of the mucous membrane that covers the white portion of the eye?

The mucous membrane that covers the white portion of the eye is called the conjunctiva. This thin and transparent tissue not only protects the eye but also helps moisten it by producing mucus and tears, contributing to the overall health of the eye. The conjunctiva serves as a barrier against pathogens and debris, playing a significant role in preventing infections.

In contrast, the cornea is the clear, dome-shaped surface that covers the front of the eye and is essential for focusing light. The sclera is the tough, outer layer of the eye that encompasses and gives shape to it; while it is white, it does not have the characteristics of a mucous membrane. The retina, on the other hand, is the innermost layer that detects light and sends visual signals to the brain, but it is not related to the outer covering of the eye. This understanding helps clarify the specific functionality and location of each structure in relation to the conjunctiva.