These white blood cells are concentrated in the lining of respiratory passages,are important phagocytes that protect the lungs,and present antigens to T cells.These white blood cells are

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Dendritic cells are important phagocytes and antigen-presenting cells that protect the lungs. They are found in the lining of respiratory passages and play a key role in the immune response to respiratory pathogens. B lymphocytes, neutrophils, and mast cells also play important roles in the immune response, but they are not as concentrated in the respiratory passages as dendritic cells. Macrophages are also important phagocytes, but they are not typically found in the lining of respiratory passages.

These White Blood Cells Are Concentrated in the Lining of Respiratory