Syljeksintä

Syljeksintä, commonly known as saliva or spit, is a clear, watery fluid secreted by salivary glands in the mouths of humans and other animals. Its primary functions are crucial for oral health and the initial stages of digestion. Saliva plays a vital role in lubricating the mouth, allowing for easier swallowing and speech. It contains enzymes, such as amylase, that begin the breakdown of carbohydrates, initiating the digestive process even before food reaches the stomach.

Beyond digestion, saliva acts as a natural cleanser, washing away food particles and bacteria, which helps to prevent tooth decay and gum disease. Its buffering capacity neutralizes acids produced by bacteria, further protecting tooth enamel. Saliva also contains antibodies and antimicrobial compounds that help to fight off infections in the oral cavity. The production of saliva is controlled by the autonomic nervous system, with its flow increasing in anticipation of or in response to the presence of food. Variations in saliva production can indicate underlying health conditions, and conditions like dry mouth, or xerostomia, can have significant negative impacts on oral health and overall well-being.