What is the function of a cardiac gland?

Cardiac glands are specialized structures located in the stomach, primarily in the cardiac region near the esophagus. Their main function is to secrete mucus and bicarbonate, which help protect the stomach lining from acidic gastric juices and facilitate the initial digestion of food. The mucus also serves as a lubricant to ease the passage of food into the stomach. Overall, cardiac glands contribute to maintaining the health and function of the gastric environment.