What is the function of Langerhans cells in the skin?

Langerhans cells play a crucial role in the skin's immune response. These specialized dendritic cells are found primarily in the epidermis and act as key players in identifying and presenting antigens to T-cells, which are essential for initiating an immune response. They help to defend the body against pathogens, particularly those that invade through the skin, such as bacteria and viruses.

By capturing and processing foreign substances, Langerhans cells can alert the immune system to potential threats, ensuring that the body can respond appropriately to infections. This function is vital for maintaining skin health and overall immunity. Other options such as producing melanin, sensation of light touch, and skin hydration are attributed to different types of cells or structures in the skin, but Langerhans cells are specifically associated with immune functions.