Deck 23: The Digestive System

Question 1

Which of following processes is the primary function of the mouth?

A)Ingestion
B)Secretion
C)Mixing and propulsion
D)Absorption
E)None of these choices

Answer 1

A

Question 2

The hard palate?1.is the anterior portion of the roof of the mouth.?2.is formed by the maxillae and palatine bones.?3.is covered by a mucous membrane.

A)1 only
B)2 only
C)3 only
D)Both 1 and 2
E)All of these choices

Answer 2

E

Question 3

The capability of the GI tract to move material along its length is called?1.Motility?2.Propulsion?3.Digestion?4.Defecation

A)1 only
B)2 only
C)3 only
D)4 only
E)Both 1 and 2

Answer 3

E

Question 4

This portion of the peritoneum is largely responsible for carrying blood and lymph vessels to the intestines.

A)Greater omentum
B)Falciform ligament
C)Lesser omentum
D)Mesentery
E)Mesocolon

Question 5

Which of following processes is the primary function of the villi of the small intestine?

A)Ingestion
B)Secretion
C)Mixing and propulsion
D)Absorption
E)None of these choices

Question 6

This plexus is located between the longitudinal and circular smooth muscle layers of the muscularis.

A)ENS
B)Myenteric plexus
C)Submucosal plexus
D)Digestive plexus
E)Absorption plexus

Question 7

This layer functions by secreting a lubricating fluid.

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

Question 8

Lateral to the base of the uvula in the mouth,this muscular fold runs posteriorly down the lateral sides of the soft palate to the pharynx.

A)Uvula
B)Palatoglossal arch
C)Palatopharyngeal arch
D)Parotid glands
E)Sublingual glands

Question 9

Which of following processes is the function of the smooth muscle layer of the digestive system?

A)Ingestion
B)Secretion
C)Mixing and propulsion
D)Absorption
E)None of these choices

Question 10

In the mouth,the tooth sockets are lined with

A)Gingivae
B)Cementum
C)Periodontal ligament
D)Pulp
E)Root

Question 11

This portion of the peritoneum drapes over the transverse colon and coils of the small intestine.

A)Greater omentum
B)Falciform ligament
C)Lesser omentum
D)Mesentery
E)Mesocolon

Question 12

Deciduous molars are replaced by

A)Bicuspids
B)Molars
C)Incisors
D)Canines
E)Wisdom teeth

Question 13

This layer of the GI tract is composed of areolar connective tissue that binds the mucosa to the muscularis.

A)Submucosa
B)Lamina propria
C)Epithelium
D)Serosa
E)None of these choices

Question 14

Which of the following accessory organs produces a fluid that functions to emulsify dietary fats?

A)Teeth
B)Salivary glands
C)Liver
D)Gallbladder
E)Pharynx

Question 15

These are composed of prominent lymphatic nodules that function in the immune response.

A)Mucosa
B)Lamina propria
C)MALT
D)Submucosa
E)Serosa

Question 16

Why do emotions such as anger or fear slow digestion?

A)Because they stimulate the parasympathetic nerves supplying the GI tract
B)Because they stimulate the somatic nerves that supply the GI tract
C)Because they stimulate the sympathetic nerves that supply the GI tract
D)They do not affect digestion
E)Because all emotions are controlled by the Vagus nerve

Question 17

This portion of the peritoneum attaches the liver to the anterior abdominal wall and diaphragm.

A)Greater omentum
B)Falciform ligament
C)Lesser omentum
D)Mesentery
E)Mesocolon

Question 18

Which of the following accessory organs produces a fluid to soften food?

A)Teeth
B)Salivary glands
C)Liver
D)Gallbladder
E)Pharynx

Question 19

Which of the following accessory organs stores bile?

A)Teeth
B)Salivary glands
C)Liver
D)Gallbladder
E)Pharynx

Question 20

This layer of the GI tract is composed of areolar connective tissue containing blood and lymph vessels.

A)Mucosa
B)Lamina propria
C)MALT
D)Muscularis
E)Epithelium

Question 21

Which of the following pancreatic enzymes acts on peptide bonds?

A)Chymotrypsin
B)Amylase
C)Pepsin
D)Phosphatase
E)Nucleosidase

Question 22

This digestive aid,produced by the stomach,begins digestion by denaturing proteins.

A)Bicarbonate ion
B)mucus
C)Bile
D)Hydrochloric acid
E)Water

Question 23

How many stages of deglutition are there?

A)2
B)3
C)4
D)5
E)8

Question 24

Which of the following small intestine cells secrete lysozyme?

A)Goblet cells
B)Absorptive cells
C)Mucosa cells
D)Paneth cells
E)S cells

Question 25

This major duct carries a fluid rich in bicarbonate ions.

A)Pancreatic duct
B)Hepatopancreatic duct
C)Cystic duct
D)Bile duct
E)Hepatic duct

Question 26

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

A)Conversion of carbohydrates
B)Protein metabolism
C)Storage of bilirubin
D)Phagocytosis
E)Storage of vitamins

Question 27

This is found on the liver and is a remnant of the umbilical cord in a fetus.

A)Coronary ligament
B)Falciform ligament
C)Round ligament
D)Kupffer ligament
E)Bile ductules

Question 28

This structure of the stomach allows greater distension for food storage.

A)Cardia
B)Fundus
C)Pylorus
D)Rugae
E)Sphincter

Question 29

Which of the following pancreatic enzymes digests lipids?

A)Trypsin
B)Elastase
C)Lipase
D)Pepsin
E)All of these choices

Question 30

Which of the following pancreatic enzymes acts on glycogen and starches?

A)Chymotrypsin
B)Amylase
C)Trypsin
D)Phosphatase
E)Nucleosidase

Question 31

Which of the following contains skeletal muscle?

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

Question 32

This hormone is stimulated by high levels of dietary fat in the small intestine.

A)Pepsin
B)Secretin
C)Gastrin
D)Cholecystokinin
E)Amylase

Question 33

Which of the following enzymes acts to produce monoglycerides as one product?

A)Lipase
B)Amylase
C)Trypsin
D)Phosphatase
E)Ligase

Question 34

This structure regulates the flow of material into the colon.

A)Ileocecal sphincter
B)Pyloric sphincter
C)Appendix
D)Sigmoid colon
E)Anal canal

Question 35

How long can food stay in the fundus before being mixed with gastric juices?

A)10 minutes
B)20 minutes
C)30 minutes
D)45 minutes
E)1 hour

Question 36

This is the principle bile pigment.

A)Stercobilin
B)Bilirubin
C)Biliverdin
D)Both Stercobilin and Bilirubin
E)All of these choices

Question 37

This cell secretes the hormone that promotes production of hydrochloric acid.

A)Neck cell
B)Chief cell
C)G cell
D)Chyme cell
E)Parietal cell

Question 38

This hormone functions to counteract the effect of gastric acid in the small intestine.

A)Pepsin
B)Secretin
C)Gastrin
D)Cholecystokinin
E)Amylase

Question 39

Brunner's glands

A)Secrete an acidic mucus
B)Secrete an alkaline juice
C)Secrete an alkaline mucus
D)Secrete an acidic juice

Question 40

Which of the following secrete hydrochloric acid?

A)Mucous cells
B)Parietal cells
C)Chief cells
D)Serosa cells
E)Chyme cells

Question 41

What layer is composed of areolar connective tissue and epithelium?

A)A
B)B
C)C
D)D
E)none of these

Question 42

Which of the following cells secretes gastrin?

A)A
B)B
C)C
D)D
E)E

Question 43

This has an opening called the apical foramen.

A)A
B)F
C)G
D)H
E)I

Question 44

Which of the following cells secretes intrinsic factor?

A)A
B)B
C)C
D)D
E)E

Question 45

What is line A pointing to?

A)Lumen
B)MALT
C)Mucosa
D)Submucosa
E)Muscularis

Question 46

Which layer contains the lamina propria?

A)A
B)B
C)C
D)D
E)E

Question 47

This is the area where pyloric stenosis occurs.

A)E
B)F
C)G
D)B
E)I

Question 48

What is line F pointing to?

A)Pulp cavity
B)Cementum
C)Root canal
D)Alveolar bone
E)Gingival sulcus

Question 49

Which of the following cells secrete mucus?

A)B
B)C
C)D
D)E

Question 50

Explain why food does not normally go up into your nasal cavity or down into your lungs when you swallow-even if you are standing on your head when you swallow.

Question 51

This consists of calcified connective tissue.

A)A
B)B
C)E
D)F
E)G

Question 52

What does line G point to?

A)Pylorus
B)Pyloric sphincter
C)Rugae
D)Pyloric antrum
E)Greater curvature

Question 53

Identify the protein-hydrolyzing enzymes in the digestive tract,and name their sources.Why are these enzymes released in an inactive form?

Question 54

Which of the following cells secretes pepsinogen?

A)A
B)B
C)C
D)D
E)E

Question 55

Which of the following is NOT a primary function of the large intestine?

A)Mechanical digestion
B)Chemical digestion
C)Absorption
D)Feces formation
E)Regulation of blood glucose

Question 56

Describe the structures and functions of the enteric nervous system.

Question 57

What is line I pointing to?

A)Greater curvature
B)Lesser curvature
C)Body
D)Fundus
E)Cardia

Question 58

Describe the role of the liver in protein metabolism.

Question 59

This is the portion of the stomach that connects to the duodenum.

A)A
B)E
C)D
D)B

Question 60

Describe the structural characteristics of the small intestine that enhance its function as the major absorber of nutrients.

Question 61

Name the structure labeled D

A)Parietal cell
B)Gastric glands
C)Gastric pit
D)Chief cell
E)Simple columnar epithelium

Question 62

The enzyme,produced in the organ labeled D,that produces both glucose and galactose as products is called:

A)lactase
B)pancreatic lipase
C)sucrase
D)pepsin
E)nucleases

Question 63

Name the structure labeled G

A)Parietal cell
B)Gastric glands
C)Gastric pit
D)Chief cell
E)Simple columnar epithelium

Question 64

Name the structure labeled F

A)Parietal cell
B)Gastric glands
C)Gastric pit
D)Chief cell
E)Simple columnar epithelium

Question 65

The enzyme,active in the organ labeled D,that has starches as a substrate is:

A)Trypsin
B)Salivary amylase
C)Ribonuclease
D)α-dextrinase
E)Pancreatic amylase

Question 66

Name the layer labeled A

A)Submucosa
B)Serosa
C)Longitudinal muscle
D)Mucosa
E)Circular muscle

Question 67

The enzyme,produced in the organ labeled D,that produces both glucose and fructose as products is called:

A)lactase
B)pancreatic lipase
C)sucrase
D)pepsin
E)nucleases

Question 68

The enzyme,produced in the organ labeled D,that produces only glucose as a product is called:

A)maltase
B)pancreatic lipase
C)sucrase
D)pepsin
E)nucleases

Question 69

Which enzyme,active in organ D,has nucleotides as a substrate?

A)nucleases
B)Salivary amylase
C)α-dextrinase
D)nucleosidases
E)pancreatic amylase

Question 70

Name the structure labeled C

A)Parietal cell
B)Gastric glands
C)Gastric pit
D)Chief cell
E)Simple columnar epithelium

Question 71

Name the layer labeled E

A)Submucosa
B)Serosa
C)Longitudinal muscle
D)Mucosa
E)Circular muscle

Question 72

The enzyme produced in the organ labeled C which digests DNA is called:

A)Deoxyribonuclease
B)Ribonuclease
C)Salivary amylase
D)Pepsin
E)sucrase

Question 73

Which enzyme,active in organ D,has nucleotides as a substrate?

A)ribonuclease
B)salivary amylase
C)phosphatases
D)α-dextrinase
E)Pancreatic amylase

Question 74

The enzyme,produced in the organ labeled C,that produces fatty acids and monoglycerides during digestion is called:

A)Sucrase
B)Pancreatic lipase
C)Salivary amylase
D)Trypsin
E)Elastase

Question 75

Name the layer labeled C

A)Submucosa
B)Serosa
C)Longitudinal muscle
D)Mucosa
E)Circular muscle

Question 76

Which of the following disorders results in an enlargement of the organ labeled G?

A)peritonitis
B)heartburn
C)mumps
D)vomiting
E)pancreatitis

Question 77

An enzyme,produced in the organ labeled D,that produces only glucose as a product is called:

A)pancreatic lipase
B)sucrase
C)lactase
D)α-dextrinase
E)chymotrypsin

Question 78

Name the layer labeled D

A)Submucosa
B)Serosa
C)Longitudinal muscle
D)Mucosa
E)Circular muscle

Question 79

The enzyme produced in the organ labeled C which digests RNA is called:

A)Sucrase
B)Deoxyribonuclease
C)Salivary amylase
D)Ribonuclease
E)Pepsin

Question 80

Name the layer labeled B

A)Submucosa
B)Serosa
C)Longitudinal muscle
D)Mucosa
E)Circular muscle