Stomach

The stomach is located between the oesophagus and the small intestine. It is made up of several layers of smooth muscle and connective tissues.



The stomach has several functions. Click here and identify 3 functions of the stomach.


Environment



The stomach produces and secretes hydrochloric acid. Therefore, it has a highly acidic environment (pH~ 1 to 2). How does the stomach protect itself from the acidic environment and keep from digesting itself? Brainstorm on this in your group and post your comments.


Does the picture below look familiar?



Yes, it is a mixer. The stomach behaves just like the mixer which churns the food into a pulp called chyme.


Enzyme



Enzymes are also secreted into the stomach to break down the food into smaller substances.

Watch this video to find out about enzymes in our stomach.

After the food is digested in the stomach, it moves into the small intestine.

Check Your Understanding here!