Chapter 23 Digestive System

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1

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

Mixing and propulsion

2

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

Ingestion

3

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

absorption

4

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

Salivary glands

5

Which of the following accessory organs stores bile?

Gallbladder

6

Which of the following accessory organs of the digestive system produces a fluid that function to emulsify dietary fats?

Liver

7

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

myenteric plexus

8

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

MALT

9

Why would you expect emotions such as anger or fear slow digestion?

because they stimulate the sympathetic nerves that supply the GI tract

10

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

greater omentum

11

The hard palate

all of the preceding

12

IN the mouth, the tooth sockets are lined with:

peridontal ligament

13

Deciduous molars are replaced by

premolars (bicuspids)

14

Which of following is the primary function of the large intestine?

feces formation

15

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

rugae

16

WHich of the following secrete gastric acid?

parietal cells

17

This cell secretes the hormone that promotes production of gastric acid

G cell

18

This major duct carries a fluid rich in bicarbonate ions

pancreatic duct

19

which of the following gastric enzymes digests proteins

pepsin

20

This is the heaviest gland of the body

liver

21

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

round ligament

22

this is the principle bile pigment

bilirubin

23

Which of the following is NOT a function of the liver

storage of bilirubin

24

WHich of the following small intestine cells secrete lysozyme

paneth cells

25

which of the following enzymes acts to produce monoglycerides and fatty acids as products?

lipase

26

Which of the following pancreatic anzymes acts to produce monosaccharides?

amylase

27

Which of the following pancreatic enzymes acts to produce smaller peptides from proteins?

chymotrypsin

28

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

secretin

29

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

cholecystokinin

30

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

Hydrochloric acid

31

This structure regulates the flow of material into the colon

ileocecal sphincter

32

The wavelike rhythmic contractions that move food through the digestive tract are called

peristalsis

33

The pyloric sphincter is found between the

stomach and the duodenum

34

The pancreas is stimulated to release its secretions by

secretin

35

The physical and chemical breakdown of food is completed primarily in the

small intestine

36

Gastric glands increase their secretory activity in response to a hormone released from the

stomach

37

The space between the parietal and visceral peritoneum is the

peritoneal cavity

38

The intrinsic factor is produced by _ cells of the gastric glands

parietal

39

Digestion begins in the

mouth

40

Taste buds are found in elevations on the dorsal surface of the tongue called

papillae

41

What are the names of three sections of the small intestine

Duodenum, jejunum, ileum

42

The final products of protein digestion are

amino acids

43

Absorption of nutrients occurs primarily in the

small intestine

44

Which hormones stimulates secretion of pancreatic juice that is rich in digestive enzymes and contraction of the wall of the gallbladder to release bile

cholecystokinin

45

The inner surface of each lip is attached to the gum by a midline fold of mucous membrane called the:

labial frenulum

46

mumps is a viral infection, inflammation and enlargement of the

parotid salivary glands

47

During the act of deglutition

food moves from the oral cavity to the stomach

48

The dental formula of the deciduous teeth in humans is:

2-1-0-2

49

The dental formula of the permanent teeth in humans is:

2-1-2-3

50

Wisdom teeth are of this late erupting type

molars