Final answer:
The salivary glands secrete approximately 1 to 1.5 liters of saliva each day. Saliva is important for moistening the mouth and teeth, as well as initiating the chemical breakdown of carbohydrates when we eat.
Step-by-step explanation:
The salivary glands secrete approximately 1 to 1.5 liters of saliva each day. Saliva is important for moistening the mouth and teeth, as well as initiating the chemical breakdown of carbohydrates when we eat. The major salivary glands, such as the parotid, submandibular, and sublingual glands, each secrete a unique formulation of saliva with different components and functions.