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AP 264 > Digestive System > Flashcards

Digestive System Flashcards

1
Q

Peristalsis is part of which digestive process?

a. Absorption
b. Ingestion
c. Propulsion
d. Chemical digestion

A

c. Propulsion

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2
Q

All of the following are part of the alimentary canal except the:

a. pharynx.
b. esophagus.
c. small intestine.
d. liver.

A

d. liver.

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3
Q

Simple columnar epithelium is found in which histological layer of the alimentary canal?

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

A

d. Mucosa

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4
Q

Which histological layer of the alimentary canal is also known as the visceral peritoneum?

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

A

c. Serosa

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5
Q

The membrane that lines the body wall of the abdominal cavity is the:

a. ventral mesentery.
b. visceral peritoneum.
c. parietal peritoneum.
d. retroperitoneum.

A

c. parietal peritoneum.

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6
Q

The teeth used to tear and pierce food are the:

a. incisors.
b. molars.
c. canines.
d. premolars.

A

c. canines.

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7
Q

The esophageal hiatus is found on this organ.

a. Esophagus
b. Stomach
c. Diaphragm
d. Pharynx

A

c. Diaphragm

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8
Q

Saliva is composed mainly of:

a. water.
b. amylase.
c. lingual lipase.
d. mucin.

A

a. water.

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9
Q

Which of the following phases of gastric secretion is a conditioned reflex?

a. Gastric phase
b. Cephalic phase
c. Intestinal phase
d. All three phases above are conditioned reflexes.

A

b. Cephalic phase

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10
Q

The gastric cells that secrete pepsinogen are the:

a. mucous neck cells.
b. parietal cells.
c. chief cells.
d. enteroendocrine cells.

A

c. chief cells.

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11
Q

Most of the digestive enzymes found in the small intestine are secreted by this accessory organ.

a. Liver
b. Gallbladder
c. Stomach
d. Pancreas

A

d. Pancreas

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12
Q

The fingerlike projections of the intestinal mucosa are called:

a. rugae.
b. plicae circulares.
c. brush borders.
d. villi.

A

d. villi.

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13
Q

This substance secreted by the pancreas helps neutralize chyme.

a. Chymotrypsin
b. Bile
c. Trypsin
d. Bicarbonate

A

d. Bicarbonate

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14
Q

This hormone triggers the release of enzyme-rich pancreatic juice.

a. CCK
b. Secretin
c. Gastrin
d. Bile

A

a. CCK

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15
Q

This hormone relaxes the hepatopancreatic sphincter.

a. CCK
b. Secretin
c. Gastrin
d. Bile

A

a. CCK

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16
Q

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

a. Cecum
b. Appendix
c. Ileum
d. Sigmoid colon

A

c. Ileum

17
Q

The pocketlike sacs of the large intestine are called:

a. teniae coli.
b. haustra.
c. epiploic appendages.
d. cecae.

A

b. haustra.

18
Q

The functions of the large intestine include all of the following except:

a. elimination of waste.
b. absorption of water and electrolytes.
c. absorption of nutrients.
d. production of vitamins.

A

c. absorption of nutrients.

19
Q

Which of the following reflexes are we able to voluntarily control?

a. Gastroileal reflex
b. Gastrocolic reflex
c. Enterogastric reflex
d. Defecation reflex

A

d. Defecation reflex

20
Q

Mass movement in the large intestine is initiated by the:

a. gastroileal reflex.
b. gastrocolic reflex.
c. enterogastric reflex.
d. defecation reflex.

A

b. gastrocolic reflex.

21
Q

Amylase allows us to digest:

a. carbohydrates.
b. proteins.
c. fats.
d. all of these.

A

a. carbohydrates.

22
Q

Which of the following enzymes is notfound in adults?

a. Carboxypolypeptidase
b. Lipase
c. Rennin
d. Chymotrypsin

A

c. Rennin

23
Q

Which of the following is not an enzyme?

a. Rennin
b. Lipase
c. Pepsin
d. Bile

A

d. Bile

24
Q

Which enzyme below digests disaccharides into monosaccharides?

a. Rennin
b. Pepsin
c. Lipase
d. Sucrase

A

d. Sucrase

25
Q

Micelles are formed during the absorption of which nutrient?

a. Monosaccharides
b. Fatty acids
c. Amino acids
d. Disaccharides

A

b. Fatty acids

26
Q

Intrinsic factor is produced in the stomach and is necessary for the absorption of:

a. triglycerides.
b. fat-soluble vitamins.
c. vitamin B12.
d. vitamin C.

A

c. vitamin B12.

AP 264 (6 decks)

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