A&p Ii Final Exam Ch. 22

Front 1

Which of the following is an organ of the alimentary canal?

Back 1

esophagus

Front 2

Which of the following is NOT a major job of the digestive system?

Back 2

manufacturing blood cells

Front 3

What is the first process to occur in the digestive system?

Back 3

ingestion

Front 4

From deep (innermost) to superficial (outermost), the layers of the organs of the alimentary canal are:1. mucosa2. muscularis externa3. serosa (adventitia)4. submucosa

Back 4

1, 4, 2, 3

Front 5

The bolus is able to move down the esophagus even if you are upside-down, because of __________.

Back 5

peristalsis

Front 6

The crown of a tooth is covered by:

Back 6

enamel

Front 7

Carbohydrate digestion begins in the:

Back 7

mouth

Front 8

What is the main job of the pharynx?

Back 8

propulsion

Front 9

A meal high in protein will cause __________.

Back 9

increased gastrin release

Front 10

The esophagus empties into the __________ region of the stomach.

Back 10

cardia

Front 11

The __________ cells of the stomach produce and secrete hydrochloric acid (HCl).

Back 11

parietal

Front 12

Chief cells release:

Back 12

pepsinogen.

Front 13

The conversion of pepsinogen into the active form, pepsin, requires:

Back 13

an acidic pH

Front 14

Which process is NOT a main function of the stomach?

Back 14

absorption

Front 15

Most nutrient absorption in the GI tract occurs in the __________.

Back 15

small intestine

Front 16

Which segment of the small intestine receives chyme from the stomach?

Back 16

duodenum

Front 17

What is the final segment of the small intestine?

Back 17

ileum

Front 18

The first portion of the large intestine is the:

Back 18

cecum

Front 19

What is NOT a major function of the normal flora of the large intestine?

Back 19

inhibit the immune system

Front 20

Which of the following operates voluntarily and is controlled by the cerebral cortex?

Back 20

external anal sphincter

Front 21

The final process to occur in the alimentary canal is:

Back 21

defecation

Front 22

What stimulus initiates the defecation reflex?

Back 22

the stretch of the rectum

Front 23

The gallbladder releases bile into the __________.

Back 23

cystic duct

Front 24

Which of the following is NOT one of the functions of the liver?

Back 24

stores and concentrates bile

Front 25

Hormone released by the duodenum in response to acids and lipids in the duodenum

Back 25

secretin

Front 26

Hormone released by the duodenum in response to lipids and partially digested proteins in the duodenum

Back 26

cholecystokinin (CCK)

Front 27

Hormone produced by an enteroendocrine cell of the stomach to inhibit acid secretion by the stomach

Back 27

somatostatin

Front 28

Hormone produced by an enteroendocrine cell of the stomach called a G cell

Back 28

gastrin

Front 29

Hormone produced by the duodenum to reduce acid secretion by the stomach

Back 29

gastric-inhibitory peptide (GIP)

Front 30

Acinar cells of the pancreas release:

Back 30

pancreatic juice.

Front 31

The gallbladder is located on the posterior side of the:

Back 31

liver

Front 32

What is responsible for the emulsification of lipids in the duodenum?

Back 32

bile

Front 33

Damaged hepatocytes will impair:

Back 33

bile production

Front 34

The removal of the gallbladder will affect:

Back 34

bile storage

Front 35

Most digestive enzymes catalyze __________ reactions.

Back 35

hydrolysis

Front 36

Which of the following vitamins is absorbed in the ileum after binding to intrinsic factor?

Back 36

Vitamin B12

Front 37

Which of the following enzymes digests proteins?

Back 37

pepsin

Front 38

Before carbohydrates are absorbed, __________ digest disaccharides into monosaccharides.

Back 38

brush border enzymes

Front 39

The enzyme salivary amylase catalyzes the reactions that break polysaccharides into oligosaccharides in this organ

Back 39

mouth

Front 40

The enzyme pepsin catalyzes reactions that digest proteins in this organ

Back 40

stomach

Front 41

Lipids are assembled into triglycerides and packaged into chylomicrons within enterocytes of this organ

Back 41

small intestine

Front 42

The hepatic portal vein takes the breakdown products of nucleic acids to this organ for metabolism

Back 42

liver

Front 43

Inactive precursors to enzymes are released by this organ to catalyze reactions that digest proteins in the small intestine

Back 43

pancreas

Front 44

Which of the following is NOT one of the functions of the digestive system?

Back 44

filtration

Front 45

The sympathetic nervous system:

Back 45

inhibits digestive processes.

Front 46

What creates the mesentery?

Back 46

visceral peritoneum

Front 47

Which of the following tongue papillae do NOT contain taste buds?

Back 47

filiform

Front 48

During the swallowing reflex __________.

Back 48

the epiglottis closes the glottis

Front 49

Which of the following is NOT a process occurring in the oral cavity?

Back 49

segmentation

Front 50

Which cranial nerve stimulates acid secretion during the stomach's gastric phase?

Back 50

vagus nerve

Front 51

Which of the following does NOT increase surface area in the small intestine?

Back 51

rugae

Front 52

Which process is a squeezing motion of the circular layer of smooth muscle in the small intestine?

Back 52

segmentation

Front 53

Which of the following is paired incorrectly?

Back 53

pepsin - oligopeptides