Which one of the following organs is not a part of the digestive system?

Of the following selections, the one which contains only accessory structures is:

The lining of the digestive tract plays a defensive role by protecting surrounding tissues against:

The mucous-producing, unicellular glands found in the mucosal epithelium of the stomach and small and large intestine are:

Which of the layers of the digestive tube is (are) most responsible for peristalsis along the esophagus?

Which of the following is true about peristalsis in the esophagus?

Swirling, mixing, and churning motions of the digestive tract provide:

The three pairs of salivary glands that secrete into the oral cavity include the:

Crushing, mashing, and grinding of food is best accomplished by the action of the:

Stomach emptying occurs more rapidly when:

The hormone gastrin:

The three divisions of the small intestine are:

The three phases of gastric function include:

The functions of the gall bladder involve:

The primary function(s) of the liver is (are):

The hormone that promotes the flow of bile and of pancreatic juice containing enzymes is:

The secretion of parietal, cells that facilitate absorption of vitamin B12 across the intestinal lining, is:

The central mechanisms regulating gastric function are:

Undigested food residues are moved through the large intestine in the following sequence:

Hydrochloric acid in the stomach functions primarily to: