What is the primary function of desmosomes in the skin?

Desmosomes play a crucial role in maintaining the structural integrity of the skin by providing intercellular connections. These specialized structures form adhesion sites between adjacent keratinocytes, which are the primary cell type in the epidermis. By connecting these cells, desmosomes ensure that the skin remains cohesive and resistant to mechanical stress, preventing skin cells from being easily pulled apart during movement or trauma. This allows the skin to function effectively as a protective barrier and contributes to its overall strength and durability.

In addition to their mechanical function, desmosomes also facilitate communication between cells, which is essential for various skin processes. However, the primary role is primarily focused on maintaining the integrity and connectivity of the skin's cellular structure, making option B the most appropriate choice.