Deck 15: The Digestive System

Question 1

What mechanical process moves the bolus through the esophagus?

A)Peristalsis
B)Swallowing
C)Segmentation
D)Mass movement

Answer 1

A

Question 2

The palate separates

A)the small and the large intestine.
B)the esophagus and the larynx.
C)the oral and nasal cavities.

Answer 2

C

Question 3

A circular muscle that acts as a valve is called a

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

Answer 3

C

Question 4

Fluoride treatment strengthens the

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

Question 5

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 6

Which type of teeth function for biting?

A)Incisors
B)Canines
C)Premolars
D)Molars

Question 7

The wisdom teeth are also

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

Question 8

Which of the following is NOT a salivary gland?

A)Submaxillary
B)Parotid
C)Sublingual
D)Submandibular

Question 9

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

A)Frenulum
B)Papillae
C)Uvula
D)Palates

Question 10

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

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

Question 11

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

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

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 function of saliva?

A)Starts the digestion of proteins
B)Moistens food for swallowing
C)Starts the digestion of starches
D)Removes microbes

Question 14

Which of the following is NOT a tonsil?

A)Palatine
B)Pharyngeal
C)Laryngeal
D)Lingual

Question 15

The pharynx transports food into the

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

Question 16

The region between the teeth,lips,and cheeks is called the

A)gingiva.
B)oropharynx.
C)uvula.
D)vestibule.

Question 17

The oral cavity and its anatomical features are responsible for

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

Question 18

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

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

Question 19

Which of the following is NOT a component of saliva?

A)The enzyme salivary amylase
B)Mucus
C)Hydrochloric acid
D)Water

Question 20

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 21

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 22

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

A)Mucosa
B)Submucosa
C)Muscularis
D)Serosa

Question 23

Which gastric gland cell type secretes HCl?

A)Chief
B)Mucus
C)Parietal
D)Enteroendocrine

Question 24

Gastric glands

A)line the esophagus.
B)secrete juice containing HCl.
C)secrete amylase.
D)All apply.

Question 25

Carbohydrates are first chemically digested in the

A)stomach.
B)duodenum.
C)mouth.
D)large intestine.

Question 26

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

A)Pyloric sphincter
B)Lower esophageal sphincter
C)Rugae
D)Adventitia

Question 27

Ingested carbohydrates are first chemically digested by

A)pancreatic amylase.
B)salivary amylase.
C)pepsin.
D)trypsin.

Question 28

The serous membrane of the abdominal cavity is the

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

Question 29

Lack of intrinsic factor leads to

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

Question 30

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 31

Which type of gastric gland cell secretes pepsinogen?

A)Chief
B)Mucus
C)Parietal
D)Enteroendocrine

Question 32

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 33

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 34

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 35

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 36

The functions of HCl in the stomach include

A)chemical digestion of fats.
B)activates lipase.
C)activates pepsin from pepsinogen.
D)All apply.

Question 37

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

A)Fundic region
B)Cardiac region
C)Hepatic region
D)Pyloric region

Question 38

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

A)Mucosa
B)Submucosa
C)Muscularis
D)Serosa

Question 39

Food leaving the stomach is called

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

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

Fat-soluble nutrients are absorbed into the _____.Lipid-soluble nutrients are absorbed into the ______.

A)blood capillaries;blood capillaries
B)blood capillaries;lacteals
C)lacteals;blood capillaries
D)lacteals;lacteals

Question 43

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 44

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 45

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

Question 46

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 47

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

A)Jejunum
B)Ileum
C)Cecum
D)Duodenum

Question 48

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 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

Which is the first portion of the small intestine?

A)Duodenum
B)Ileum
C)Jejunum
D)Cecum

Question 51

Lacteals

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

Question 52

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

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

Question 53

Food usually leaves the stomach in 10 to 12 hours.

Question 54

Vitamins and minerals are digested in the small intestine.

Question 55

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

A)GIP
B)Gastrin
C)Cholecystokinin
D)Secretin

Question 56

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 57

What serves to emulsify fats?

A)HCl
B)Bile
C)Mucus
D)Intrinsic factor

Question 58

Bile is secreted by the _____ into the ______.

A)liver;duodenum
B)gastric glands;stomach
C)pancreas;duodenum
D)salivary glands;mouth

Question 59

Peristalsis begins in the pharynx.

Question 60

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 61

What action(s)can help prevent constipation?

A)Drinking more water
B)Eating more fiber
C)Getting exercise
D)All apply.

Question 62

Feces pass from the sigmoid colon directly into the

A)ilium.
B)cecum.
C)rectum.
D)descending colon.

Question 63

Following the path of feces,what is the first section of the large intestine?

A)Ascending colon
B)Cecum
C)Descending colon
D)Rectum

Question 64

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

A)Ileum
B)Cecum
C)Rectum
D)Colon

Question 65

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

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

Question 66

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

Question 67

The large intestine functions to

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

Question 68

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

Question 69

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 70

Which of the following is NOT part of the colon?

A)Ascending colon
B)Rectum
C)Sigmoid colon
D)Transverse colon

Question 71

Which is the correct order,following the path of feces,through the large intestine?

A)Cecum,descending colon,ascending colon,transverse colon,sigmoid colon
B)Cecum,ascending colon,transverse colon,descending colon,sigmoid colon
C)Sigmoid colon,descending colon,transverse colon,ascending colon,cecum
D)Ascending colon,transverse colon,descending colon,sigmoid colon,cecum

Question 72

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

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

Question 73

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

Question 74

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

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

Question 75

Bacteria in the large intestine

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

Question 76

The pouches in the walls of the large intestine are called

A)anal canals.
B)vermiform appendices.
C)taenia coli.
D)haustrae.

Question 77

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 78

Appendicitis and diverticulosis are associated with the

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

Question 79

Leptin stimulates

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

Question 80

What is the last section of the large intestine?

A)Rectum
B)Cecum
C)Ascending colon
D)Sigmoid colon