I WONDER - What Is Saliva? Me Pregunto - Qué es la saliva?

The video explains the role of salivary glands in the mouth, which produce saliva. Saliva is a viscous liquid that aids in digestion by moistening food and contains enzymes that help break down food. The salivary glands can produce over a liter of saliva daily. When we see or smell food, our brain signals the glands to produce saliva, preparing the body for digestion.

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