Telocytes . Dendritic reticular cells . Immune cells . Mucous glands

Cellular elements organization in the trachea of mallard (Anas platyrhynchos) with a special reference to its local immunological role

This animal study examined the cellular structure of the trachea (windpipe) in mallard ducks using light and electron microscopy. Researchers found a complex organization of cells that form the first line of defense aga…