water and fat.
It adds moisture / lubricates the food
mucus lubricates the food as it passes down the oesophagus (gullet).
Saliva breaks down your food as you chew, softening it and making it smaller. It also lubricates the esophagus.
Saliva lubricates chewed food, aiding in the formation of a cohesive bolus that can be easily swallowed. It contains water, mucus, and enzymes, which help break down food and facilitate digestion. The mucus in saliva specifically provides the necessary moisture and smoothness for easy passage through the esophagus.
It releases a juice called saliva which lubricates the food and aids in partial digestion of starch.
the saliva softens and lubricates the food you digest.
A fluid called synovial fluid lubricates the joint when it is moved.
A fluid called synovial fluid lubricates the joint when it is moved.
In the mouth, where digestion begins, food is reduced to smaller pieces by the teeth, increasing its surface area. The saliva begins the chemical break-down of the food and lubricates it for easier swallowing.
Broken up by the teeth and mixed with saliva, which lubricates it so its easier to swallow.
oil
lubricates