Which of the following characteristics is shared by the skin and mucous membranes?
A) they are both constantly shedding and replacing cells.
B) they both have cilia.
C) the outer layers are composed of dead cells.
D) sebum may be present.
E) lysozymes are always present.

Question

Quizplus · Accepted Answer

Both the skin and mucous membranes are constantly shedding and replacing cells to maintain their protective barrier function. This helps to prevent the entry of pathogens or harmful substances into the body. While the outer layers of skin are composed of dead cells, this is not necessarily true for mucous membranes. Sebum may be present on the skin, but not necessarily on all mucous membranes. Lysozymes may be present on some mucous membranes, but not necessarily on the skin. The statement that they both have cilia is also not necessarily true as not all mucous membranes have cilia.

Which of the Following Characteristics Is Shared by the Skin