Exam 28: A: Anatomy of the Digestive System

Even though the structure of the GI tract changes from one section to another,the composition and structure of the four layers remain the same.

Intestinal digestive enzymes are produced in the brush border cells toward the top of the villi of the small intestine.

The uvula is a small,cone-shaped process that is suspended from the hard palate of the mouth.

The Paneth cells of the small intestine produce enzymes,but they are used for protection rather than digestion.

The gallbladder has a maximum capacity of about 25 ml of bile.

The peritoneum that covers the organs is called the visceral layer.

The submucosal plexus is a group of parasympathetic nerves found in the submucosa.

The formation of ulcers has been linked to the bacterium Streptococcus pylori.

Crohn disease is an inflammatory disease of the bowel.

The gastric glands in the small intestine secrete enzymes and hydrochloric acid.

Teeth are considered the organs of mastication.

The alimentary canal has two openings to the exterior of the body.

In the wall of the small intestine,the longitudinal muscles are grouped into tape-like strips called haustra.

Most of the stomach lies to the left of the midline,below the diaphragm,and in the abdominal cavity.

The stomach wall is unique because it is made up of four layers of muscle rather than three.

Glucagon and insulin assist the GI tract in the digestive process.

The only salivary gland that produces both mucus and enzymes is the parotid gland.

The term intramural plexus includes both the Meissner and the Auerbach plexus.

Bile is released from the gallbladder into the stomach to aid in the digestive process.

The hepatic flexure of the large intestine is located in the left hypochondriac region.