Deck 15: Digestive System

Question 1

The function of the uvula is to prevent food from entering the

A)larynx.
B)pharynx.
C)nasal cavity.
D)mouth.

Answer 1

C

Question 2

The oral cavity and its anatomical features are responsible for

A)ingestion of food.
B)mechanical digestion.
C)swallowing.
D)All apply.

Answer 2

D

Question 3

The external surface of the crown of a tooth is covered with the

A)dentin.
B)pulp.
C)enamel.
D)caries.

Answer 3

C

Question 4

Which of the following is NOT a function of the digestive system?

A)ingestion of food
B)absorption of nutrient molecules
C)elimination of indigestible wastes
D)movement of nutrients to the cells

Question 5

The material that leaves the mouth and enters the pharynx is called

A)chyme.
B)chyle.
C)bolus.
D)rugae.

Question 6

Food is digested so that

A)it can be swallowed.
B)it can be converted to waste.
C)nutrients are small enough to enter the cell.
D)All apply.

Question 7

Fluoride treatment strengthens the

A)enamel.
B)dentin.
C)pulp.
D)periodontal membrane.

Question 8

Which of the following is NOT a component of saliva?

A)the enzyme salivary amylase
B)mucus
C)hydrochloric acid
D)water

Question 9

Which of the following is the correct order for the tissues of the digestive tract from external to internal?

A)muscularis,mucosa,submucosa,serosa
B)serosa,muscularis,submucosa,mucosa
C)mucosa,submucosa,muscularis,serosa
D)submucosa,mucosa,muscularis,serosa

Question 10

Which of the following is NOT a salivary gland?

A)submaxillary
B)parotid
C)sublingual
D)submandibular

Question 11

The pharynx transports food into the

A)stomach.
B)esophagus.
C)larynx.
D)All apply.

Question 12

Which region of the pharynx serves only the respiratory system?

A)laryngopharynx
B)nasopharynx
C)oropharynx

Question 13

Which of the following is NOT a tonsil?

A)palatine
B)pharyngeal
C)laryngeal
D)lingual

Question 14

Which type of teeth function for biting?

A)incisors
B)canines
C)premolars
D)molars

Question 15

A circular muscle that acts as a valve is called a

A)diaphragm
B)epiglottis
C)sphincter
D)plicae

Question 16

Which of the following is NOT a function of saliva?

A)starts the digestion of proteins
B)moistens food for swallowing
C)starts the digestion of starches
D)removes microbes

Question 17

What mechanical process moves the bolus through the esophagus?

A)peristalsis
B)swallowing
C)segmentation
D)mass movement

Question 18

What structures of the tongue help to handle food and contain the taste buds?

A)frenulum
B)papillae
C)uvula
D)palates

Question 19

What separates the oral cavity from the nasal cavity?

A)the hard palate
B)the frenulum
C)the soft palate
D)both the hard palate and the soft palate

Question 20

The wisdom teeth are also

A)incisors.
B)canines.
C)premolars.
D)last molars.

Question 21

How many layers of smooth muscle are generally found in the muscularis layer of the digestive tract wall?

A)one
B)two
C)three
D)none

Question 22

Which of the following is NOT a region of the stomach?

A)fundic region
B)cardiac region
C)hepatic region
D)pyloric region

Question 23

What digestive function occurs in the esophagus?

A)begin chemical digestion of proteins
B)provide saliva to moisten the bolus
C)transport the bolus from the pharynx to the stomach
D)help protect the body from disease

Question 24

Deep folds in the wall of the stomach called _____ help it to expand to hold food.

A)rugae
B)plicae
C)sphincters
D)gastric pits

Question 25

Which is the first portion of the small intestine?

A)duodenum
B)ileum
C)jejunum
D)cecum

Question 26

Food leaving the stomach is called

A)bolus.
B)rugae.
C)chyme.
D)peristalsis.

Question 27

The functions of HCl in the stomach include

A)kills bacteria
B)breaks down connective tissue of meat
C)activates pepsin from pepsinogen
D)All apply.

Question 28

An open sore in the stomach wall due mainly to the action of a bacterium,Helicobacter pylori,is

A)pernicious anemiA.
B)heartburn.
C)a hiatal hernia.
D)an ulcer.

Question 29

Which layer of the digestive tract wall contains lymphocytes,blood vessels,and nerves?

A)mucosa
B)submucosa
C)muscularis
D)serosa

Question 30

The pharynx is a passageway for food,drink,and air.

Question 31

Gastric glands

A)are in the stomach.
B)secrete juice containing HCl.
C)secrete juice containing an enzyme.
D)All apply.

Question 32

Which layer of the digestive tract wall is made of glandular epithelial cells and goblet cell?

A)mucosa
B)submucosa
C)muscularis
D)serosa

Question 33

What is the purpose of the secretions of the serosa?

A)digest carbohydrates
B)reduce acidity
C)allow abdominal organs to slide against each other
D)All of the choices are correct.

Question 34

What prevents acid from backing up into the esophagus from the stomach?

A)pyloric sphincter
B)lower esophageal sphincter
C)rugae
D)adventitia

Question 35

Lack of intrinsic factor leads to

A)heartburn.
B)pernicious anemia.
C)gastric ulcers.
D)None apply.

Question 36

Which type of gastric gland cell secretes pepsinogen?

A)chief
B)mucus
C)parietal
D)enteroendocrine

Question 37

Which gastric gland cell type secretes HCl?

A)chief
B)mucus
C)parietal
D)enteroendocrine

Question 38

What is the function of the small intestine?

A)digests food
B)absorbs nutrients
C)transports undigested food to the large intestine
D)All apply.

Question 39

The serous membrane of the abdominal cavity is the

A)pericardium.
B)pleura.
C)peritoneum.
D)serosa.

Question 40

Which of the following is NOT a function of the stomach?

A)digestion of most foods
B)receives and stores food
C)liquefies food through its muscular mixing action
D)moves food into the small intestine

Question 41

Which is the longest portion of the small intestine?

A)ileum
B)duodenum
C)pylorus
D)jejunum

Question 42

The parasympathetic nervous system will trigger the _______ phase of digestive secretion.

A)cephalic
B)pancreatic
C)intestinal
D)gastric

Question 43

The small intestine is so named because of its short length.
The small intestine is so named because of its small diameter.

Question 44

Which of the following is NOT a region of the small intestine?

A)jejunum
B)ileum
C)cecum
D)duodenum

Question 45

The presence of food high in amino acids that stretches the stomach will trigger the ______ phase of digestion.

A)gastric
B)cephalic
C)digestive
D)intestinal

Question 46

Peristalsis begins in the pharynx.
Peristalsis begins in the esophagus.

Question 47

Swallowing is totally a voluntary action.
Swallowing begins as a voluntary action but then becomes involuntary as the bolus gets closer the stomach.

Question 48

Lacteals

A)are located in villi.
B)are part of the lymphatic system.
C)absorb fat molecules.
D)All apply.

Question 49

Which digestive secretion is correctly matched to its function?

A)gastrin - release of alkaline secretions from the pancreas
B)secretin - release of hydrochloric acid
C)cholecystokinin (CCK)- release of alkaline pancreatic juices and bile
D)GIP - decreased release of bile

Question 50

The muscularis layer is normally made up of two layers of skeletal muscle.
The muscularis layer normally has two layers of smooth muscle.

Question 51

Which nervous system division controls muscle contraction and secretion in the digestive system?

A)somatic motor nervous system
B)sympathetic nervous system
C)enteric nervous system
D)afferent nervous system

Question 52

The esophagus is an open,muscular tube that runs from the pharynx to the stomach.
The esophagus is a collapsed muscular tube.

Question 53

In peristalsis,

A)the entire tube (i.e.esophagus)contracts at once.
B)short segments alternate contraction and relaxation.
C)food can move forward or backward.
D)contraction can only occur when food is present.

Question 54

What hormone,secreted by enteroendocrine cells,increases stomach churning and release of gastric juices?

A)GIP
B)gastrin
C)cholecystokinin
D)secretin

Question 55

What body system,other than the nervous system,is very important for controlling activities of the digestive system?

A)skeletal system
B)muscular system
C)lymphatic system
D)endocrine system

Question 56

Food usually leaves the stomach in 10 to 12 hours.
Food usually leaves the stomach in 2 to 6 hours.

Question 57

Vitamins and minerals are digested in the small intestine.
Vitamins and minerals do not need to be digested.

Question 58

Which of the following does NOT aid in giving the internal surface of the small intestine a larger surface area?

A)circular folds
B)rugae
C)villi
D)microvilli

Question 59

A special type of mixing movement of chyme through the small intestine is called

A)peristalsis.
B)segmentation.
C)absorption.
D)mass movement.

Question 60

Which phase of digestion occurs when you think about,see,or taste food?

A)mental phase
B)intestinal phase
C)gastric phase
D)cephalic phase

Question 61

Leptin stimulates

A)the hunger sensation.
B)release of secretin.
C)the feeling of fullness after eating.
D)gastrin secretion.

Question 62

Which of the following is NOT a feature of the large intestine?

A)shorter and larger in diameter than the small intestine
B)contains pouches called haustra
C)moves waste by segmentation
D)absorbs water,salts,and some vitamins

Question 63

What action(s)can help prevent constipation?

A)drinking more water
B)eating more fiber
C)getting exercise
D)All apply.

Question 64

Which of the following is NOT part of the large intestine?

A)ileum
B)cecum
C)rectum
D)colon

Question 65

The secretion of pancreatic juice from the pancreas is a/an

A)endocrine function.
B)exocrine function.
C)hormone function.
D)All apply.

Question 66

List the five accessory organs of digestion.

Question 67

The pancreas and liver are referred to as accessory organs because

A)they are not needed for digestion.
B)food does not pass through them.
C)they do not produce digestive enzymes.
D)All apply.

Question 68

What is the last section of the large intestine?

A)rectum
B)cecum
C)ascending colon
D)sigmoid colon

Question 69

Pancreatic amylase will digest

A)proteins.
B)fats.
C)starches.
D)minerals.

Question 70

The hormone,gastrin,controls muscle contraction and secretion by the stomach.

Question 71

The feeling of hunger which causes us to eat is produced by the action of

A)leptin.
B)cholecystokinin.
C)secretin.
D)ghrelin.

Question 72

Which of the following is NOT part of the colon?

A)ascending colon
B)rectum
C)sigmoid colon
D)transverse colon

Question 73

Bacteria in the large intestine

A)break down some undigested food.
B)produce vitamins.
C)produce gas.
D)All apply.

Question 74

Pancreatic juice and bile are both released into the

A)duodenum.
B)ascending colon.
C)jejunum.
D)descending colon.

Question 75

Appendicitis and diverticulosis are associated with the

A)small intestine.
B)large intestine.
C)stomach.
D)esophagus.

Question 76

Movement of wastes through the large intestine too quickly can result in

A)diarrheA.
B)constipation.
C)heartburn.
D)peritonitis.

Question 77

What is the first section of the large intestine that is a blind sac?

A)ascending colon
B)cecum
C)descending colon
D)rectum

Question 78

The large intestine functions to

A)digest fat.
B)absorb water.
C)store food.
D)All apply.

Question 79

The pancreas secretes enzymes acting on

A)proteins.
B)fats.
C)carbohydrates.
D)All apply.

Question 80

The hormones leptin and ghrelin are produced by the ______ and act on the _______.

A)duodenum,stomach
B)pancreas,duodenum
C)stomach,hypothalamus
D)pancreas,cerebrum