What is the role of Langerhans cells?

Langerhans cells are immune cells in the skin that capture and recognize foreign substances, then carry information about them to nearby lymph nodes. This helps activate an immune response so the pathogens can be destroyed. Choice C, identifying pathogens and carrying them to lymph nodes, describes this role; the cells do not mainly prevent entry with antibacterial agents or destroy pathogens directly using white blood cells.

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