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Digestive System

Total questions: 143

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

What is digestion?

a)

the process of breaking down food into small fragments

b)

mastication of food into smaller fragments

c)

absorption of water and food

d)

absorption of nutrients into the blood

2.

the tube that extends from the mouth to the anus

a)

small intestine

b)

auditory canal

c)

gastrointestinal tract

d)

esophagus

3.

wave like muscle contractions that pushes food through the intestine

a)

absorption

b)

digestion

c)

ingestion

d)

peristalsis

4.

(a)   digestion physically breaks down ingested materials into smaller pieces

5.

(a)   digestion secretes enzymes such as saliva to break food down into smaller pieces

6.

What is the organs that are included in the gastrointestinal tract?

a)

mouth, tongue, pharynx, esophagus, stomach, pancreas, small intestine, large intestine, and anus

b)

tongue, teeth, salivary glands, liver, gallbladder, and pancreas

c)

mouth, pharynx, esophagus, stomach, small intestine, liver, and anus

d)

mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus

7.

What are the functions of the digestive system?

a)

digestion

b)

absorption

c)

elimination of wastes

d)

churning of the stomach

8.

What are the accessory digestive organs?

a)

mouth, tongue, liver, pancreas, gallbladder, salivary glands

b)

mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus

c)

tongue, teeth, salivary glands, liver, gallbladder, and pancreas

d)

tongue, teeth, salivary glands, liver, pancreas, stomach

9.

GI lymphatics absorb

a)

fat and lipid molecules

b)

fat and vitamins

c)

nutrients

d)

fats

10.

tongue, teeth, salivary glands, liver, gallbladder, and pancreas

a)

Accessory digestive organs

b)

GI tract organs

11.

mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus

a)

Accessory digestive organs

b)

GI Tract organs

12.

Abdominopelvic cavity is line by (a)  

13.

The peritoneum that lines the abdominal wall

a)

parietal peritoneum

b)

visceral peritoneum

c)

peritoneum cavity

14.

The peritoneum that COVERS the abdominal organs

a)

peritoneum cavity

b)

parietal peritoneum

c)

visceral peritoneum

15.

What is the peritoneum cavity?

(a)  

16.

What is the first step in the process of digesting and absorbing materials?

a)

mechanical digestion

b)

ingestion

c)

absorption

d)

chemical digestion

17.

The process of turning waste into feces and fecal material

a)

secretion

b)

defecation

c)

absorption

d)

elimination

18.

Producing and releasing mucin or fluids such as acid, bile and digestive enzymes

a)

chemical digestion

b)

secretion

c)

ingestion

d)

elimination

19.

mastication (chewing)

a)

digestion

b)

chemical digestion

c)

mechanical digestion

d)

ingestion

20.

mucin mixing with water to form mucus and coats GI wall to lubricate it against acidic secretions

a)

mechanical digestion

b)

digestion

c)

chemical digestion

d)

ingestion

21.

Passive or active transport of electrolytes, digestion products, vitamins and water across the GI tract epithelium and into GI blood and lymph vessels

a)

absorption

b)

digestion

c)

chemical digestion

d)

secretion

22.

What is defecation?

a)

materials moving through the large intestine

b)

the process of turning waste into feces

c)

removing and excreting feces from the body

d)

breaking down large food items into smaller structures

23.

What is process of digestion from start to end?

a)

chemical digestion, mechanical digestion, absorption, elimination and defecation

b)

ingestion, mechanical digestion, chemical digestion, absorption, elimination and defecation

c)

mechanical digestion, chemical digestion, absorption and elimination

d)

ingestion, digestion, absorption, defecation

24.

The digestive system is controlled by _________ nervous system

a)

autonomic

b)

sympathetic

25.

Parasympathetic _____________ the activity of the GI tract

a)

decreases

b)

increases

26.

Sympathetic _____________ the activity of the GI tract

a)

increases

b)

decreases

27.

What type of epithelium does the oral cavity have?

a)

simple squamous epithelium

b)

pseudostratified cuboidal columnar epithelium

c)

nonkeratinized stratified squamous epithelium

d)

mucosa

28.

What is the role of nonkeratinized stratified squamous epithelium in the oral cavity

(a)  

29.

When chewed, food is mixed with saliva and converted into a ball of food called _______.

a)

feces

b)

chyme

c)

a bolus

d)

bile

30.

Undigested materials are expelled from the body via a process called ______.

a)

absorption

b)

regulation

c)

defecation

d)

secretion

31.

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

a)

gustation

b)

olfaction

c)

sound production

d)

swallowing

32.

The salivary glands collectively produce and secrete saliva, a fluid that assists in the initial activities of ______.

a)

absorption

b)

digestion

c)

excretion

33.

Teeth are responsible for ______, the first part of the ______ digestion process.

a)

dentition, chemical

b)

mastication, mechanical

c)

mastication, chemical

34.

The oropharynx and the laryngopharynx are lined with ______ epithelium.

a)

nonkeratinized stratified squamous

b)

pseudostratified ciliated

c)

simple columnar

d)

keratinized stratified squamous

35.

Not everything we eat can be used by the body. Two examples include ______ and ______.

a)

protein, fat

b)

cellulose, fiber

c)

carbohydrates, protein

d)

vitamins and fates

36.

The portion of the serous membrane that directly contacts the surface of some abdominal organs is called the ______ peritoneum.

a)

visceral

b)

parietal

37.

The tongue is an accessory digestive organ that is formed primarily from ______ muscle and covered with stratified ______ epithelium.

a)

skeletal, squamous

b)

smooth, squamous

c)

smooth, columnar

d)

skeletal, columnar

38.

The ______ cavity is a potential space where the parietal and visceral layers that face each other secrete a lubricating ______ fluid.

a)

abdominal, muscous

b)

abdominal, serous

c)

peritoneal, serous

d)

peritoneal, mucous

39.

Most saliva is produced during ______, but smaller amounts are produced continuously to ensure that the oral cavity mucous membrane remains moist.

a)

mealtime

b)

nighttime

c)

the morning

40.

In a tooth, ______ pass through the apical foramen and are housed in the pulp.

a)

lymphatic vessels and enamel

b)

dentin and enamel

c)

blood vessels and nerves

d)

collagen and elastin fibers

41.

The nerve fibers that control the contractions of the circular and longitudinal layers of the muscularis are called the (a)   nerve plexus.

42.

The abdominopelvic cavity is lined with moist ______ membranes.

a)

serous

b)

adventitia

c)

mucous

43.

In the submucosa, ______-secreting glands project ducts across the mucosa and open into the lumen of the tract in the esophagus and duodenum.

a)

mucin

b)

water

c)

acid

d)

serous

44.

he wall of the GI tract, from the esophagus through the ______, contains ______ concentric layers called tunics.

a)

rectum, five

b)

stomach, three

c)

large intestine, four

d)

small intestine, three

45.

For most of the abdominal GI tract organs, the lining epithelium is a ______ epithelium.

a)

tranitional

b)

stratified columnar

c)

simple columnar

d)

pseudostratified

46.

The muscularis usually contains two layers of ______ muscle.

a)

smooth

b)

striated

c)

skeletal

47.

In the GI tract, branches of the arteries travel within the tunics, and the mucosa contains capillaries that have ______ endothelial cells to promote absorption.

a)

sinusoidal

b)

fenestrated

c)

continuous

48.

Exceptions to the typical pattern of smooth muscle fiber orientation include the ______ (which contains a mixture of skeletal and smooth muscle) and the ______ (which contains three layers of smooth muscle).

a)

esophagus/stomach

b)

ilieum, jejunum

c)

duodenum

49.

The parasympathetic changes in activity induce ______ and an increase in GI ______ flow.

a)

vasodilation, blood

b)

vasoconstriction, lymph

c)

vasoconstriction, blood

50.

The blood vessels, lymphatic structures, and nerves enter the GI tract from either the surrounding structures or via the supporting ______.

a)

lamina propria

b)

submuosa

c)

mesentery

51.

The submucosa is composed of either ______ or dense irregular connective tissue and has far ______ cells than the lamina propria.

a)

adipose, fewer

b)

adipose, more

c)

areolar, fewer

d)

dense regular, more

52.

The veins of the GI tract merge to form the ______ system of veins.

a)

phrenic

b)

hepatic portal

c)

hepatic vein

d)

splenic

53.

In general, ______ innervation promotes digestive system activity by stimulating GI gland secretions and peristalsis, and by relaxing GI sphincters.

a)

somatic

b)

sympathetic

c)

parasympathetic

54.

The inferior part of the esophagus connects to the stomach by passing through an opening in the diaphragm called the esophageal

(a)  

55.

Swallowing, also called (a)   , is the process of moving ingested material from the oral cavity to the stomach

56.

After the bolus has been completely processed in the stomach, the product is called ______.

a)

slime

b)

chylomicron

c)

chyme

d)

prime

57.

The (a)   is a tubular passageway for swallowed materials being conducted from the pharynx to the stomach.

58.

The empty esophagus is ______.

a)

distended

b)

continuously open

c)

flattened

d)

partially open

59.

Select three phases of swallowing

a)

esophageal

b)

laryngeal

c)

tracheal

d)

pharyngeal

e)

voluntary

60.

The oblique layer is best-developed at the ______ and the ______ of the stomach.

a)

fundus/pylorus

b)

cardia/body

c)

body/pylorus

61.

At the base of each pit are the openings of several branched tubular glands, called ______, which extend through the length of the mucosa to its base.

a)

rugae

b)

villi

c)

cilia

d)

gastric glands

62.

The stomach is intraperitoneal, so its outermost tunic is a(n) ______.

a)

submucosa

b)

serosa

c)

mucosa

d)

adventitia

63.

The gastric glands in the cardia and pylorus produce mainly protective and ______, mucin.

a)

alkaline

b)

acidic

c)

neutral

64.

The small intestine receives its blood supply primarily from branches of the ______ mesenteric artery, and it is innervated by the superior mesenteric ______.

a)

medial, plexus

b)

lateral, artery

c)

inferior, artery

d)

superior, plexus

65.

Ingested nutrients spend at least ______ hours in the small intestine as chemical digestion and absorption are completed.

a)

24

b)

2

c)

4

d)

12

66.

Circular folds act to ______ the movement of chyme and ensure that it remains within the small intestine for maximal nutrient absorption.

a)

slow down

b)

speed up

67.

The large intestine originates at the (a)   junction and terminates at the anus.

68.

Circular (a)   in the small intestine help increase the surface area through which nutrients can be absorbed.

69.

By absorbing most of the remaining water, the watery material that first enters the large intestine soon solidifies and becomes ______.

a)

feces

b)

bile

c)

chyme

d)

bolus

70.

The small intestine extends from the ______ of the stomach to the ______ of the large intestine, and thus occupies a significant portion of the abdominal cavity.

a)

pylorus, ileum

b)

pylorus, cecum

c)

fundus, cecum

d)

body, ileum

71.

The villi ______ the small intestine surface area for absorption and secretion.

a)

increase

b)

decrease

72.

The large intestine absorbs most of the ______ and ions from the remaining digested material.

a)

nutrients

b)

fiber

c)

cellulose

d)

water

73.

Both the cecum and the vermiform appendix are ______ organs.

a)

intraperitoneal

b)

mucosal

c)

retroperitoneal

74.

The ascending colon is ______ since its posterior wall directly adheres to the posterior abdominal wall, and only its anterior surface is covered with peritoneum.

a)

retroperitoneal

b)

omental

c)

intraperitoneal

75.

A type of mesentery called the transverse (a)   connects the transverse portion of the large intestine to the posterior abdominal wall.

76.

Three thick, transverse folds of the rectum, called (a)   valves, ensure that fecal material is retained during the passing of gas.

77.

The mucosa of the large intestine is lined with simple ______ epithelium and goblet cells.

a)

cuboidal

b)

columnar

c)

squamous

78.

The descending colon is ______ and found along the ______ side of the abdominal cavity.

a)

retroperitoneal

b)

left

c)

right

d)

intraperitoneal

79.

The rectum is a ______ structure that connects to the ______ colon.

a)

intraperitoneal, descending

b)

retroperitoneal, descending

c)

intraperitoneal, sigmoid

d)

retroperitoneal, sigmoid

80.

The large intestine mucosa lacks ______.

a)

basal lamina

b)

intestinal villi

c)

epithelium

81.

Hepatocytes produce bile, detoxify drugs, metabolites, and poisons.

a)

True

b)

False

82.

The accessory digestive organs produce ______ that facilitate the chemical digestive activities of GI tract organs.

a)

secretions

b)

hormones

c)

sebum

83.

The (a)   duct connects the gallbladder to the common bile duct

84.

Hepatocytes synthesize blood plasma proteins such as albumins, ______, and proteins required for blood clotting.

a)

globulins

b)

secretin

c)

trypsin

d)

somatostatin

85.

The __________ concentrates bile produced by the _______ and stores this concentrate until it is needed for digestion.

(a)  

86.

The biliary apparatus is a network of thin ducts that carry bile from the liver and gallbladder to the ______.

a)

jejunum

b)

ileum

c)

duodenum

d)

stomach

87.

The exocrine activity of the pancreas results in the secretion of digestive _______ and bicarbonate, collectively called __________ juice, into the duodenum

(a)  

88.

The oral cavity is continuous posteriorly with the

(a)  

89.

Tongue motor innervation

a)

CN XII Hypoglossal

b)

CN V Trigeminal

c)

CN IX Glossopharyngeal

d)

CN X Vagus

90.

Tongue sensory (texture) innervation

a)

CN V Trigeminal

b)

CN IX Glossopharyngeal

c)

CN XII Hypoglossal

d)

CN VII Facial

91.

Tongue Taste innervation

a)

CN VII Facial

b)

anterior 2/3

c)

posterior 1/3

d)

CN IX Glossopharyngeal

92.

What is the function of the soft palate and uvula?

a)

speech production

b)

turn food into a bolus

c)

rises to close off nasopharynx when swallowing

93.

Function of saliva

a)

dissolve food molecules

b)

moistens food and helps turn it into a bolus

c)

cleanses mouth

d)

chemical digestion of carbohydrates

e)

inhibit bacterial growth

94.

Function of the pharynx

a)

voluntarily propel food from the mouth into the esophagus

b)

involuntarily propel food from the mouth into the esophagus

95.

Which structure conducts both food and air?

a)

oropharynx

b)

trachea

c)

laryngopharynx

d)

esophagus

96.

What epithelium lines the nasopharynx?

a)

pseudostratified cuboidal columnar

b)

simple squamous

c)

keratinized stratified squamous

d)

nonkeratinized stratified squamous

97.

What epithelium lines the oropharynx and laryngopharynx?

a)

keratinized stratified squamous

b)

nonkeratinized stratified squamous

c)

PCCE

d)

simple squamous

98.

What organ has nonkeratinized stratified squamous mucosa?

a)

esophagus

b)

stomach

c)

small intestine

d)

large intestine

99.

Which organ(s) have simple columnar epithelium mucosa?

a)

esophagus

b)

stomach

c)

small intestine

d)

large intestine

100.

Which organ has 2 layers of muscle?

1/3 skeletal muscle

1/3 smooth and skeletal muscle

1/3 smooth muscle

a)

large intestine

b)

small intestine

c)

esophagus

d)

stomach

101.

Which organ has 3 layers of smooth muscle?

a)

small intestine

b)

stomach

c)

large intestine

d)

esophagus

102.

Which organ has a inner circular layer and an outer longitudinal layer

a)

small intestine

b)

stomach

c)

large intestine

d)

esophagus

103.

Which organ has 2 layers of smooth muscle?

outer longitudinal layer (teniae coli)

a)

small intestine

b)

large intestine

c)

stomach

d)

esophagus

104.

The tunics comprising the GI tract wall include

a)

mucosa

b)

submucosa

c)

muscularis

d)

serosa or adventitia

105.

Function of the stomach

a)

churn food and mixes it with gastric juice to break it down into chyme

b)

chemical digestion

c)

absorb nutrients

106.

food leaves the stomach as (a)  

107.

The mucosa of the stomach contains (a)  

108.

Why does the muscularis of the stomach have 3 layers of smooth muscle and not two?

a)

helps to churn the food into smaller pieces

b)

the stomach is able to absorb more food and nutrients

109.

Functions of the small intestine

a)

finishes the chemical digestion process

b)

churn food into smaller pieces

c)

absorbs the rest of the water in the intestine

d)

absorbs most of all the nutrients

110.

The duodenum receives chyme from the (a)  

111.

How does the duodenum receive bile and pancreatic enzymes?

a)

pancreas

b)

duodenum papilla

c)

common bile duct

d)

gallbladder

112.

Which of the following is the correct order of small intestine regions that food passes as it's being digested?

a)

duodenum-ileum-jejunum

b)

duodenum-jejunum-ileum

c)

jejunum-duodenum-ileum

d)

ileum-jejunum- duodenum

113.

Which cranial nerves innervate the salivary glands?

a)

VI and IX

b)

XI and XII

c)

V and XI

d)

VII and IX

114.

Which is not correct about the esophagus?

a)

it serves as the passageway for a bolus to pass from the pharynx to the stomach

b)

it is located posterior to the trachea

c)

it secretes a variety of enzymes for chemical digestion

d)

it produces movement by peristalsis

115.

Check all that are characteristics of the esophagus

a)

the mucosa is composed of thick, nonkeratinized stratified squamous epithelium

b)

it is composed entirely of smooth muscle

c)

the two layers of muscle in the superior one-third of the muscularis are skeletal

d)

it is located almost entirely in the abdomen

116.

Oral cavity function

a)

secrete saliva and breakdown food

b)

move food from mouth into esophagus

c)

churn food

d)

finish chemical digestion with saliva

117.

Select the functions of the liver

a)

concentrates bile

b)

produce and secretes bile

c)

process the products of digestion

d)

expel bile

118.

_____ ______ vein brings blood into the liver from the small intestine

(a)  

119.

The hepatic artery brings in blood________ from the heart/aorta

a)

high in oxygen

b)

low in oxygen

120.

Oxygenated and deoxygenated blood from the branch of the hepatic artery and branch of the hepatic portal vein sends blood to the (a)  

121.

Bile flows in the ________ direction from the central vein

a)

opposite

b)

same (as the oxygenated and deoxygenated blood)

122.

Does the gallbladder produce bile?

a)

no

b)

yes

123.

What organ store and concentrate bile

a)

liver

b)

gallbladder

124.

The pancreas has (a)   cells

125.

The pancreas secrete (a)   juice

126.

What is pancreatic juice function

a)

neutralize gastric juice

b)

breakdown food

127.

a network of tubes that transport bile and pancreatic juice to the duodenum

a)

duodenal papilla

b)

common bile duct

c)

pancreatic duct

d)

biliary apparatus

128.

What is the path of bile through the biliary apparatus starting from the gallbladder to the small intestine?

a)

left and right hepatic ducts, common bile duct, gallbladder, common hepatic duct, hepatopancreatic ampulla, major duodenal papilla

b)

left and right hepatic ducts, common hepatic duct, gallbladder, common bile duct, major duodenal papilla

c)

left and right hepatic ducts, common hepatic duct, gallbladder, common bile duct, hepatopancreatic ampulla, major duodenal papilla

d)

left and right hepatic ducts, common hepatic duct, common bile duct, hepatopancreatic ampulla, gallbladder, major duodenal papilla

129.

Celiac supplies blood to the

a)

stomach

b)

small intestine

c)

liver

d)

spleen

130.

Superior mesenteric artery supplies blood to

a)

almost all of small intestine

b)

all of the large intestine

c)

first part of large intestine

d)

just the small intestine

131.

inferior mesenteric artery supplies blood to

a)

final part of large intestine

b)

all of large intestine

c)

stomach

d)

small intestine

132.

Veins that drain blood from GI tract directly to the liver

a)

hepatic portal system

b)

central vein

c)

hepatic vein

133.

Where does the splenic vein drain blood from?

a)

spleen

b)

liver

c)

pancreas

d)

gallbladder

134.

What are the cells that process blood from the hepatic portal vein?

(a)  

135.

When the blood from the hepatic portal vein is processed and leaves the liver, where does it go?

(a)  

136.

Salivary glands are increased by

a)

parasympathetic

b)

sympathetic

137.

Sphincter relaxes (vasodilation)

a)

parasympathetic

b)

sympathetic

138.

Sphincter closes (vasoconstriction)

a)

parasympathetic

b)

sympathetic

139.

Increased peristalsis

a)

parasympathetic

b)

sympathetic

140.

Decreased peristalsis

a)

sympathetic

b)

parasympathetic

141.

decreased bile production

a)

sympathetic

b)

parasympathetic

142.

increased pancreatic juice

a)

sympathetic

b)

parasympathetic

143.

Decreased pancreatic juice

a)

parasympathetic

b)

sympathetic