Deck 16: Digestive System

Question 1

The layer of the digestive tract that contains blood vessels,nerves,and connective tissue is the

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

Answer 1

C

Question 2

The term tricuspids refers to these types of teeth

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

Answer 2

D

Question 3

Because of its location,the pharynx can be considered part of the

A) digestive system
B) musculoskeletal system
C) respiratory system
D) both a and c above

Answer 3

D

Question 4

Which of the following is a main organ of the digestive system?

A) Liver
B) Stomach
C) Pancreas
D) Both b and c above

Question 5

Enamel is found in the

A) root of the tooth
B) crown of the tooth
C) neck of the tooth
D) all of the above

Question 6

Which structure prevents food and liquid from entering the nasal cavities above the mouth?

A) Soft palate
B) Frenulum
C) Vallate papillae
D) Both a and b above

Question 7

The outermost layer of the digestive tract is the

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

Question 8

Food undergoes which of the following types of processing in the body?

A) Digestion
B) Absorption
C) Metabolism
D) All of the above

Question 9

The layer of the digestive tract that is composed of stratified and columnar epithelium is the

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

Question 10

The sequence of sections of small intestine through which food passes would be

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

Question 11

From which salivary gland do the ducts that open on either side of the lingual frenulum come?

A) Sublingual gland
B) Submaxillary gland
C) Submandibular gland
D) None of the above

Question 12

Which of the following is an accessory organ of the digestive system?

A) Salivary glands
B) Mouth
C) Pharynx
D) Both a and c above

Question 13

The largest of the salivary glands is the

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

Question 14

The part of the stomach to the left and above the opening of the esophagus into the stomach is the

A) pylorus
B) fundus
C) body
D) rugae

Question 15

The part of the stomach that joins with the small intestine is the

A) pylorus
B) fundus
C) body
D) rugae

Question 16

The layer of the digestive tract that generates peristalsis is the

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

Question 17

Which of the following processes does not occur in the digestive system exclusively?

A) Digestion
B) Absorption
C) Metabolism
D) All of the above occur in the digestive system exclusively

Question 18

Dentin is found in the

A) root of the tooth
B) crown of the tooth
C) neck of the tooth
D) all of the above

Question 19

Which of the following structures does not help to increase the absorptive surface area of the small intestine?

A) Villi
B) Plicae
C) Lacteal
D) Microvilli

Question 20

Lining each tooth socket is

A) a mucous membrane
B) a simple squamous epithelium membrane
C) a periodontal membrane
D) dentin

Question 21

Protein digestion

A) end products are amino acids
B) uses peptidase made in the small intestines
C) uses trypsin made in the pancreas
D) all of the above

Question 22

The function of bile is to

A) chemically digest fat
B) emulsify fat
C) remove cholesterol from the body
D) both b and c above

Question 23

In the stomach

A) pepsin converts hydrochloric acid to pepsinogen
B) pepsin converts pepsinogen to hydrochloric acid
C) hydrochloric acid converts pepsinogen to pepsin
D) hydrochloric acid converts pepsin to pepsinogen

Question 24

Maltase and sucrase are made in the

A) small intestine
B) pancreas
C) stomach
D) liver

Question 25

The vermiform appendix

A) produces enzymes that assist in fat digestion
B) gets its name because it looks like a worm
C) is important in the reabsorption of bile
D) none of the above

Question 26

Amylase is made in the

A) salivary glands
B) stomach
C) pancreas
D) both a and c above

Question 27

Lipase

A) is made in the pancreas
B) is stored in the gallbladder
C) converts fatty acid and glycerol to fats
D) all of the above

Question 28

Trypsin

A) is important in protein digestion
B) works in the stomach
C) is made in the liver
D) a and c above

Question 29

Enzymes are important in

A) mechanical digestion
B) deglutition
C) chemical digestion
D) both a and c above

Question 30

At the splenic flexure,the

A) transverse colon becomes the descending colon
B) descending colon becomes the sigmoid colon
C) ascending colon becomes the transverse colon
D) ascending colon becomes the descending colon

Question 31

In which part of the small intestine does most of the chemical digestion occur?

A) Ileum
B) Jejunum
C) Duodenum
D) Both a and c above

Question 32

At the hepatic flexure,the

A) transverse colon becomes the descending colon
B) descending colon becomes the transverse colon
C) ascending colon becomes the transverse colon
D) ascending colon becomes the descending colon

Question 33

The movement of digested food from the digestive system to the circulating fluid is called

A) digestion
B) deglutition
C) absorption
D) peristalsis

Question 34

The end product of amylase digestion is usually

A) glucose
B) lactose
C) maltose
D) fructose

Question 35

Which of the following statements is correct?

A) The cystic duct drains bile from the liver.
B) The cystic duct and hepatic duct join to form the common bile duct.
C) The hepatic duct connects the gallbladder and the small intestine.
D) Both a and c above

Question 36

Bile

A) causes the emulsification of fat
B) is made in the liver
C) works in the small intestine
D) all of the above

Question 37

Fat digestion begins in the

A) mouth
B) stomach
C) small intestine
D) large intestine

Question 38

Protein digestion begins in the

A) mouth
B) stomach
C) small intestine
D) large intestine

Question 39

The most abundant end product of carbohydrate digestion is

A) maltose
B) glucose
C) lactose
D) sucrose

Question 40

Which of the following is an extension of the peritoneum?

A) Mesentery
B) Cecum
C) The greater omentum
D) Both a and c above

Question 41

Which of the following substances is absorbed by the large intestine?

A) Salts
B) Vitamin K
C) Water
D) All of the above

Question 42

Which of the following is not considered a main part of the tooth?

A) Root
B) Cuspid
C) Crown
D) Neck

Question 43

The tube that drains bile from the liver is the

A) common bile duct
B) cystic duct
C) hepatic duct
D) major duodenal papillae

Question 44

Which of the following is not a name for the open-ended tube through which food passes?

A) Digestive system
B) Alimentary canal
C) Gastrointestinal tract
D) All of the above are names for the open-ended tube through which food passes

Question 45

The layers of the digestive tract from the inside (lumen)to the outside are

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

Question 46

Sharp cutting edge teeth used for cutting during chewing are called

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

Question 47

Which of the following is not true of the gastrointestinal tract?

A) It is about 9 feet long in adults.
B) It is also called the alimentary canal.
C) The material in the gastrointestinal tract is considered to be outside the body.
D) All of the above are true of the gastrointestinal tract.

Question 48

Which of the following is not an example of mechanical digestion?

A) Chewing food
B) Churning food in the stomach
C) Enzymes breaking food down to small molecules
D) All of the above are examples of mechanical digestion

Question 49

The length of the gastrointestinal tract in an adult is about

A) 9 feet
B) 19 feet
C) 29 feet
D) 39 feet

Question 50

The tube that drains bile from the gallbladder is the

A) common bile duct
B) cystic duct
C) hepatic duct
D) major duodenal papillae

Question 51

Canine teeth are sometimes called

A) cuspids
B) incisors
C) bicuspids
D) tricuspids

Question 52

The ducts that carry secretion from the pancreas empty into which part of the digestive tract?

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

Question 53

A full set of deciduous or baby teeth consists of

A) 20 teeth
B) 24 teeth
C) 32 teeth
D) 38 teeth

Question 54

Which of the following processes is not considered an example of mechanical digestion?

A) The teeth chewing food
B) The stomach churning food
C) Amylase acting on food in the mouth
D) Bile acting on food in the small intestine

Question 55

Which of the following is not a function of the pancreas?

A) Produces enzymes that digest proteins
B) Produces proteins that digest fat
C) Produces a substance that neutralizes hydrochloric acid produced in the stomach
D) All of the above are functions of the pancreas

Question 56

Which of the following statements is not true?

A) Peristalsis pushes food through the digestive tract.
B) Segmentation does not move food through the digestive tract.
C) Segmentation continues the mechanical digestion of food.
D) All of the above statements are true.

Question 57

This bone does not make up part of the hard palate

A) ethmoid bone
B) palatine bone
C) maxillary bone
D) all of the above bones make up part of the hard palate

Question 58

Tooth decay,or dental caries,is a disease of this part of the tooth

A) enamel
B) dentin
C) cementum
D) all of the above

Question 59

Which of the following substances is absorbed into the blood capillaries of the intestinal villi?

A) Amino acids
B) Fatty acids
C) Glycerol
D) All of the above

Question 60

A full set of permanent consists of

A) 20 teeth
B) 24 teeth
C) 32 teeth
D) 38 teeth

Question 61

Tricuspids are teeth used for grinding or crushing.

Question 62

The secretion of the hormone cholecystokinin from the small intestine causes

A) an increase in peristalsis in the stomach
B) a relaxation of the pyloric sphincter
C) an increase of intestinal segmentation
D) a contraction of the gallbladder to move bile to the duodenum

Question 63

Which of the following is not true of the esophagus?

A) It is about 25 centimeters long.
B) It is a tube that connects the larynx and stomach.
C) It is a muscular, mucus-lined tube.
D) The mucosal lining lubricates the tube to permit easier passage of food to the stomach.

Question 64

The structure that regulates the movement of food from the stomach to the small intestine is the

A) esophageal sphincter
B) cardiac sphincter
C) fundal sphincter
D) pyloric sphincter

Question 65

Digestion occurs in the organs in the digestive tract.

Question 66

The mucosa and the serosa are the innermost and outermost layers of the digestive tract,respectively.

Question 67

This salivary gland produces both mucus and enzyme-containing saliva

A) parotid gland
B) submandibular gland
C) sublingual gland
D) all of the above glands produce both types of saliva

Question 68

Which of the following is not a characteristic of enzymes?

A) Their names frequently end in -ase.
B) They act as catalysts for the digestion of food.
C) One enzyme can act on many different types of food.
D) All of the above are characteristics of enzymes.

Question 69

The duodenum is an accessory structure of the digestive system.

Question 70

Metabolism occurs only in the organs of the digestive tract.

Question 71

Enamel covers the crown and neck of the tooth.

Question 72

The muscularis layer of the digestive tract is responsible for peristalsis.

Question 73

The alimentary canal and the gastrointestinal tract refer to the same thing.

Question 74

Incisors are also called the canine teeth.

Question 75

The vermiform appendix is an accessory structure of the digestive system.

Question 76

The esophagus is a main organ of the digestive system.

Question 77

The soft palate and the frenulum are on the roof of the mouth and keep food from going into the nasal cavity when a person swallows.

Question 78

The semisolid mixture in the stomach is called

A) bolus
B) chyme
C) feces
D) deglutition

Question 79

The submucosa layer of the digestive tract is composed of epithelial tissue.

Question 80

This part of the pharynx is the most actively and directly involved in the digestive process

A) nasopharynx
B) oropharynx
C) laryngopharynx
D) epiglottis