Digestive 2

Question 1

1) 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

Answer 1

C

Question 2

2) 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 2

A

Question 3

3) 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

Answer 3

D

Question 4

4) Which of the following accessory organs produces a fluid to soften food?
a) Teeth b) Salivary glands c) Liver d) Gallbladder e) Pharynx

Answer 4

B

Question 5

5) 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

Answer 5

Answer: c

Question 6

6) Which of the following accessory organs stores bile?
a) Teeth b) Salivary glands c) Liver d) Gallbladder e) Pharynx

Answer: d

Answer 6

Answer: d

Question 7

7) 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 7

Answer: e

Question 8

8) 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

Answer 8

Answer: b

Question 9

9) 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

Answer 9

Answer: a

Question 10

10) This layer functions by secreting a lubricating fluid.

a) Serosa b) Submucosa c) Muscularis d) Mucosa e) MALT

Answer 10

Answer: a

Question 11

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

a) Mucosa b) Lamina propria c) MALT d) Submucosa
e) Serosa

Answer 11

Answer: c

Question 12

12) 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

Answer 12

Answer: b

Question 13

13) 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

Answer 13

Answer: c

Question 14

14) 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

Answer 14

Answer: a

Question 15

15) 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

Answer 15

Answer: b

Question 16

16) 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

Answer 16

Answer: e

Question 17

17) 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 17

Answer: e

Question 18

18) 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

Answer 18

Answer: c

Question 19

19) In the mouth, the tooth sockets are lined with

a) Gingivae b) Cementum c) Periodontal ligament d) Pulp e) Root

Answer 19

Answer: c

Question 20

20) Deciduous molars are replaced by

a) Bicuspids b) Molars c) Incisors d) Canines e) Wisdom teeth

Answer 20

Answer: a

Question 21

21) Which of the following contains skeletal muscle?

a) Muscularis b) Mucosa c) Serosa d) Submucosa

Answer 21

Answer: a

Question 22

22) How many stages of deglutition are there?

a) 2
b) 3 c) 4 d) 5 e) 8

Answer 22

Answer: b

Question 23

23) This structure of the stomach allows greater distension for food storage.
a) Cardia b) Fundus c) Pylorus d) Rugae e) Sphincter

Answer 23

Answer: d

Question 24

24) Which of the following secrete hydrochloric acid?

a) Mucous cells b) Parietal cells c) Chief cells d) Serosa cells e) Chyme cells

Answer 24

Answer: b

Question 25

25) 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

Answer 25

Answer: c

Question 26

26) 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

Answer 26

Answer: e

Question 27

27) 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

Answer 27

Answer: a

Question 28

28) Which of the following pancreatic enzymes digests lipids?
a) Trypsin b) Elastase c) Lipase d) Pepsin e) All of these choices

Answer 28

Answer: c

Question 29

29) 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

Answer 29

Answer: c

Question 30

30) This is the principle bile pigment.

a) Stercobilin b) Bilirubin c) Biliverdin d) Both Stercobilin and Bilirubin e) All of these choices

Answer 30

Answer: b

Question 31

31) 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

Answer 31

Answer: c

Question 32

32) Which of the following small intestine cells secrete lysozyme?
a) Goblet cells b) Absorptive cells c) Mucosa cells d) Paneth cells e) S cells

Answer 32

Answer: d

Question 33

33) Brunner’s glands

a) Secrete an acidic mucus b) Secrete an alkaline juice c) Secrete an alkaline mucus d) Secrete an acidic juice

Answer 33

Answer: c

Question 34

34) Which of the following enzymes acts to produce monoglycerides as one product?
a) Lipase b) Amylase c) Trypsin d) Phosphatase e) Ligase

Answer 34

Answer: a

Question 35

35) Which of the following pancreatic enzymes acts on glycogen and starches?
a) Chymotrypsin b) Amylase c) Trypsin d) Phosphatase e) Nucleosidase

Answer 35

Answer: b

Question 36

36) Which of the following pancreatic enzymes acts on peptide bonds?

a) Chymotrypsin b) Amylase c) Pepsin d) Phosphatase
e) Nucleosidase

Answer 36

Answer: a

Question 37

37) This hormone functions to counteract the effect of gastric acid in the small intestine.
a) Pepsin b) Secretin c) Gastrin d) Cholecystokinin e) Amylase

Answer 37

Answer: b

Question 38

38) This hormone is stimulated by high levels of dietary fat in the small intestine.
a) Pepsin b) Secretin c) Gastrin d) Cholecystokinin e) Amylase

Answer 38

Answer: d

Question 39

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

a) Bicarbonate ion
b) mucus c) Bile d) Hydrochloric acid e) Water

Answer 39

Answer: d

Question 40

40) This structure regulates the flow of material into the colon.
a) Ileocecal sphincter b) Pyloric sphincter c) Appendix d) Sigmoid colon e) Anal cana

Answer 40

Answer: a

Question 41

41) 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

Answer 41

E