This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Antigen presenting cells present in skin are called 
Select and explain. 
A. Langerhans cells, B. Kupffer cells, C. Microglia, D. Melanocytes
A: Langerhans cells
Answer: A: Langerhans cells 
Explanation: Ref Robbins 9/e p192 Langerhans cells are dendritic cells (antigen-presenting immune cells) of the skin, and contain organelles called Birbeck granules. They are present in all layers of the epidermis and are most prominent in the stratum spinosum.