Goblet cells are specialized epithelial cells found in various tissues, particularly in the lining of the intestines and respiratory tract. Their primary function is to produce and secrete mucus, which serves to lubricate and protect the surfaces of these organs. This mucus traps pathogens and particles, helping to keep the tissues moist and functioning properly. These cells are named for their shape, which resembles a goblet or wine glass. In addition to their role in mucus production, goblet cells also play a part in the immune response by releasing antimicrobial substances. Their presence is crucial for maintaining the health of mucosal surfaces in the body.