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Exam 26: Digestive System

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Question 21

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The enzyme pepsin becomes active when pH is

A) high.
B) low.

C) A) and B)
D) undefined

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Question 22

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Describe the anatomy and physiology of swallowing. Specifically, explain the three phases of swallowing, and how they are controlled.

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The cerebrum and skeletal muscles govern...

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Question 23

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Lipids are absorbed from the small intestine into lymphatic capillaries called ________.

The wall of the pharynx is formed by three muscle pairs: the superior, middle, and inferior pharyngeal ________.

Most saliva is produced by the ________ gland.

Where are the transverse palatine folds located?

The gallbladder is part of the gastrointestinal tract.

The teniae coli of the large intestine pull the large intestine into many sacs, collectively called ________.

Which of the following is considered to be one of the primary digestive system hormones?

Bile catalyzes the breakdown of triglyceride into a monoglyceride and two free fatty acids.

A complex carbohydrate that consists of several repeating units of simple sugars is referred to as a ________.

The pharyngeal phase of swallowing is a voluntary process that is controlled by the cerebral cortex.

Manufacturers of some medications used to treat heartburn advertise that their products shut down the acid-producing pumps in the stomach. Where are these "acid-producing pumps"? In other words, which type of gastric gland cell secretes acid?

The term "motility" refers only to involuntary contractions (not voluntary contractions) that mix and move materials through the GI tract.

Which organ is not part of the gastrointestinal tract?

The gastroenterologist has just determined that you have a blockage in your jejunum and he will have to perform surgery, making a small incision in the wall to remove the obstruction. Which tunic will be cut first?

The cystic duct and common bile duct unite to form the common hepatic duct.

Which is (are) not found in the wall of the large intestine?

Digestion of carbohydrates within the small intestine involves enzymes that come from the A: mouth. B: stomach. C: pancreas. D: lining of the small intestine.

The ________ is the region of the oral cavity between the gums and the cheeks or lips.