JSIERT

The size of the ileum is about 2 meters.

Next short region to the duodenum of about 2 meters.

Short upper part next to the stomach.

The three sub-regions of the small intestine are: Duodenum Jejunum Ileum

The small intestine is a tube about 7 meters long and 2.5 cm wide.

Sometimes when the stomach is overloaded or disturbed, vomiting occurs in which the cardiac sphincter opens and a reverse wave of muscular contraction is caused by throwing the contents out through the mouth.

The food stays in the stomach for about 3 hours and it attains a pulp-like form called the chyme.

There are three types of salivary glands:- Parotid glands Submandibular glands Sublingual glands

Cardiac sphincter is present at the front end of the stomach to prevent back flow of food into the oesophagus.

It has a ring of muscles to keep the opening closed like a valve to prevent food passing from the stomach until it is thoroughly churned up.