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Exam 24: Digestive System

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Question 21

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Nervous control of gastric secretion is provided by the __________ nerve and enteric plexus.

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Question 22

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Which of the following substances is released by the chief cells of the gastric glands?

A) Hydrochloric acid
B) Serotonin
C) Pepsinogen
D) Gastrin
E) Intrinsic factor

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Question 23

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Which of the following is true about the esophagus?

The human liver is composed of how many lobes?

The fold of peritoneal membrane that suspends the jejunum and ileum from the posterior abdominal wall is called a mesentery.

Which of the following is the essential role of bacteria in the large intestine?

How many pairs of major salivary glands secrete into the oral cavity?

The enzyme that converts starch into simple sugar is lipase.

The layer of the digestive tube that contains blood vessels, lymphatic nodes, and a rich supply of elastic fibers is the __________.

__________ cells of the stomach produce hydrochloric acid.

The bonds that involve amino acids, such as arginine and lysine, are broken by which of the following?

GERD may result in Barrett's esophagus.

Liver cells that remove debris and foreign substances from the blood are known as __________ macrophages and Kupffer cells.

The myenteric plexus is a layer of circular smooth muscle.

Maltose is broken down into two molecules of glucose by the enzyme __________.

Which of the following is not stored in the liver?

The parietal cells secrete which of the following?

The vestibule is the portion of the mouth that lies between the teeth, cheeks, and lips.

The dangling process that aids in preventing aspiration of food is known as the __________.

Cholecystokinin is a hormone that is released from which of the following parts of the digestive system?