Fluid secretion is the process by which cells produce and release fluids, such as saliva, mucus, or digestive juices. This process is essential for various bodily functions, including digestion, lubrication, and protection of tissues. Glands, such as the salivary glands and pancreas, play a crucial role in fluid secretion by responding to specific signals in the body. The secretion of fluids can be regulated by hormones and neural signals. For example, the hormone secretin stimulates the pancreas to release bicarbonate-rich fluid, which helps neutralize stomach acid in the small intestine. Proper fluid secretion is vital for maintaining homeostasis and supporting overall health.