Digestive System

Diagram of Salivary Glands

"How Much Saliva Can You Produce Everyday?"

bottle of saliva

"One liter -This Much!"


And all this saliva is secreted by


digestive system diagram, digestive system pictures, parts of the digestive system

Digestive System Diagram

Your Salivary Glands



They come in pairs on the left and right of your skull, namely:

1. Parotid glands close beneath your ears contribute 25% of thicker saliva with larger amount of digestive enzyme.

2. Sublingual glands under your tongue, produces 5% saliva, and

3. Submandibular glands under your lower jaw bone is a major contributor of 70%.


I laugh to think of the Chinese word "Kou-Shui" for saliva literally "mouth water" because it accurately portrays the main composition of saliva - 99.4% water. The remaining 0.6% is an assortment of ions, buffers, metabolites and...enzymes.


The enzyme I am seeking here is amylase. To explain, let me chew my favourite starch food, pasta al dente, leisurely and gradually comes a mild sweet sensation. That's because amylase in the saliva breaks down the pasta into simple sugar called maltose.


As I look at the bottle above to mentally estimate less than 0.6%, that's only a tiny amount of amylase to digest all the starch I eat for the whole day. Yes, enzymes are powerful little workers!


A health freak friend of mine says the first thing she doses after waking up every morning , mind you, is not brush teeth but to swallow her own saliva. Sounds like "free enzyme drink" to prevent constipation, eh? * Grins of the Alice in Wonderland Cat*




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