What type of cell protects the body from infection?

Langerhans cells are a specialized type of dendritic cell found in the skin that play a crucial role in the immune system. These cells are part of the body's defense mechanism against pathogens. They function by capturing and presenting antigens (substances that provoke an immune response) to T-cells, which are critical for the adaptive immune response. In this way, Langerhans cells help the body recognize and fight off infections, making them vital for maintaining skin health and protecting against external threats.

Keratinocytes are the predominant cell type in the outer layer of the skin and are primarily involved in producing keratin, a protective protein that helps create a barrier against environmental damage. While they contribute to the skin's overall integrity and function, they do not directly play a protective role against infections in the same way Langerhans cells do.

Melanocytes are responsible for producing melanin, the pigment that gives skin its color and provides some level of protection against UV radiation. Their role is more about limiting damage from sunlight than directly combating infections.

Sebocytes, on the other hand, are the cells that produce sebum, an oily substance that helps keep the skin moisturized and may have some antimicrobial properties, but they are not primarily responsible