Chapter 15 Flashcards Preview

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Flashcards in Chapter 15 Deck (35):
1

The correct sequence for the layers within the walls of the alimentary canal from inside to outside is the

mucous membrane, submucosa, muscular layer, serous layer.

2

The teeth that are best adapted for biting off relatively large pieces of food are the

incisors.

3

The root canal of a tooth contains

blood vessels and nerves.

4

The salivary enzyme amylase functions to digest

carbohydrates.

5

A relatively new treatment in the management of gastric ulcers is a drug that inhibits the production of HCl in the stomach. If a person took this medication for a long period, the digestion of which of the following would be affected the most?

proteins

6

The parietal cells of gastric glands secrete

hydrochloric acid.

7

Gastrin, which is secreted by stomach cells, functions to

increase the secretions of the gastric glands.

8

Cholecystokinin from the intestinal wall is stimulated by the presence of

protein and fat in the small intestine.

9

emulsification by bile

2, 4, 3, 1, 5

10

The hormone called secretin functions to

stimulate the release of pancreatic juice.

11

Which of the following is a protein-splitting enzyme found in pancreatic juice?

trypsin

12

What constituent of bile has a digestive function?

bile salts

13

One of the major functions of the large intestine is to

reabsorb water from chyme.

14

During the defecation reflex, the

diaphragm is lowered.

15

A characteristic shared by all enzymes involved in protein digestion is that all are

secreted in an INACTIVE FORM.

16

Peristalsis occurs in the digestive tract

from the pharynx to the anus.

17

Digestion of which of the following would be affected the most if the liver were severely damaged?

lipids

18

Because of their location, swollen palatine tonsils may interfere with

BOTH breathing and swallowing.

19

The loss of teeth is most commonly associated with diseases of the

gums and dental pulp.

20

A hiatal hernia is due to a weakness of the

diaphragm

21

Heartburn is usually caused by the effects of gastric juice on the

esophagus

22

Gastric and duodenal ulcers are usually caused by the action of

pepsin

23

The condition called acute pancreatitis is often caused by the conversion of

1. trypsinogen to 2. trypsin

24

Jaundice, which is characterized by a yellowish tinge to the tissues, is due to an increased blood concentration of

bile pigments.

25

Gallstones are usually composed of

cholesterol

26

The greater omentum is composed of the

PERITONEAL membrane.

27

The epithelial cells that form the inner lining of the small intestine

are replaced every few days.

28

When nutrients are digested but are not taken in by the intestinal tissues, the condition is called

malabsorption

29

If the blood vessels of the anal columns become enlarged, the condition is called

hemorrhoids

30

The Valsalva maneuver is normally used to aid

defecation

31

The effects of sympathetic nerve impulses on the alimentary canal are _____ and parasympathetic impulses are _____ .

inhibitory, or slow down activity;

stimulative, or cause increases in activity

32

Which layer of the alimentary canal is responsible for absorption of nutrients?

mucosa

33

The bile canals of the liver unite to form the

HEPATIC ducts.

34

Gallstones may form if

bile is concentrated excessively.

35

Which of the following is a function of the large intestine?

absorption of WATER AND ELECTROLYTES