Exam 33: Structure and Function of the Digestive System

Which sphincter prevents reflux of digested material from the colon into the small intestine?

A 15-year-old female begins taking a new weight-loss drug. The drug inhibits the smooth muscle action of the stomach. It most likely acts by increasing _____ stimulation.

The primary bile acids are synthesized from _____ by hepatocytes lining the bile canaliculi.

A new drug is being tested that is known to inhibit parasympathetic nervous system activity. It is expected that the salivary glands will become:

When relaxed, which sphincter allows bile to flow into the duodenum?

The vermiform appendix is attached to the:

Which sphincter keeps stomach acid from regurgitating into the esophagus?

Autonomic and hormonal control are involved in gastrointestinal motility and:

The exocrine portion of the pancreas contains:

Digested fats are primarily absorbed into the:

A 70-year-old male presents complaining of frequent gastrointestinal problems. His physician explains that during aging GI changes such as _____ occur.

The pancreas produces which substance to prevent the premature activation of proteolytic enzymes in the pancreas?

In the liver, free bilirubin moves from the plasma in the sinusoids into the hepatocytes where it is converted into:

The gastrointestinal tract performs all of the following processes except:

A young male student becomes very hungry during class. He begins thinking of a cheeseburger and fries, his favorite meal. These thoughts will trigger which phase of gastric secretion?

The capillaries of the liver are more commonly known as hepatic:

Salivary $\alpha$ -amylase (ptyalin) initiates the digestion of:

Food moves down the esophagus via:

The _____ cells of the gastric glands secrete hydrochloric acid.

The ileum and jejunum are suspended by folds of the peritoneum known as the _____ that contains an extensive vascular and nervous network.