Test
digestive
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Preguntas del test (126)
1The walls of the GI tract are composed of _____ layers of tissue.
- Atwo
- Bthree
- Cfour
- Dfive
2Which of the following organs has a mucosa layer composed of stratified squamous epithelium that resists abrasion?
- Aesophagus
- Bstomach
- Csmall intestine
- Dlarge intestine
3T type of cell designed for absorption and secretion found throughout much of the GI tract is ______ epithelium.
- Asimple columnar
- Bstratified squamous
- Csimple squamous
- Dpseudostratified
4The hard palate consists of portions of:
- Afour bones: three maxillae and one palatine.
- Btwo bones: one maxillae and one paplatine.
- Cfour bones: two maxillae and two palatines
- Dtwo bones: two palatines
5After leaving the stomach, food enters the:
- Alarge intestine
- Bsmall intestine
- Cesophagus
- Drectum
6An incision into the wall of the GI tract would cut, in order, from superficial to deep:
- Amucosa, submucosa, muscularis, and serosa
- Bserosa, submucosa, muscularis, and mucosa
- Cserosa, muscularis, submucosa, and mucosa
- Dmuscularis, submucosa, mucosa, and serosa
7Which of the following organs has a mucosal layer that is composed of columnar epithelium with a brush border of microvilli to enhance absorption?
- Aesophagus
- Blarge intestine
- Csmall intestine
- Dstomach
8The more common term for degluition is:
- Achewing
- Bswallowing
- Cmechanical digestion
- Dvomiting
9The extrinsic tongue muscles differ from the intrinsic tongue muscles in that the ______ outside the tongue.
- Aextrinsic muscles have both their insertion and origin
- Bintrinsic muscles have their origin inside the tongue but their insertion
- Cextrinsic muscles insert into the tongue but have their origin
- Dintrinsic muscles have both their insertion and origin
10Approximately how much saliva do the three pairs of compound tubuloalveolar glands (parotids, submandibulars, and sublinguals) secrete each day?
- A200 mL
- B500 mL
- C750 mL
- D1 liter
11The numerous small elevations on the surface of the tongue that support taste buds are called:
- Acilia
- Brugae
- Cvilli
- Dpapillae
12Which of the following papillae of the tongue lack taste buds?
- Avallate
- Bfungiform
- Cfiliform
- Dlingual
13The substance that forms the outer covering of the neck and root of a tooth is:
- Aenamel
- Bdentin
- Ccementum
- Dpulp
14Which of the following salivary glands produces only a mucus type of saliva?
- Asublinguals
- Bparotids
- Csubmandibulars
- Dboth A and B
15The greatest proportion of the tooth shell consists of:
- Aenamel
- Bdentin
- Cgingivae
- Dcementum
16A permanent set of teeth normally consists of _____ teeth.
- A26
- B30
- C32
- D36
17Under normal conditions, how many deciduous teeth are there?
- A16
- B20
- C24
- D32
18The tooth type that is not part of a deciduous set of teeth is:
- Aincisors
- Bcanines (cuspids)
- Csecond molars
- Dpremolars (bicuspids)
19Which of the following structures controls the opening of the stomach into the small intestine?
- AFundus
- BCardiac sphincter
- Cpyloric sphincter
- Dbody
20In the stomach, hydrochloric acid is secreted by the:
- Achief cells
- Bparietal cells
- Clymph nodules
- DBoth A and B are correct
21Hydrochloric acid is released from cells in the:
- Astomach
- Bpancreas
- Csmall intestine
- Dlarge intestine
- Eall of the above are correct
22Which of the following is not associated with the large intestine?
- APyloric sphincter
- Bcecum
- Cappendix
- Dtransverse colon
23The contents of the stomach are emptied into the:
- Aduodenum
- Bileum
- Cjejunum
- Dcecum
24Which of the following is not an anatomical part of the small intestine?
- Aduodenm
- Bcecum
- Clleum
- Djejunum
25Which of the following structures is anatomically the longest?
- Aesophagus
- Bduodenum
- Cjejunum
- Dlleum
26The part of the colon that lies in the vertical position, on the left side of the abdomen, extending form a point below the stomach and spleen to the level of the iliac crest is the ____colon?
- Aacending
- Btransverse
- Cdescending
- Dsigmold
27The proper anatomical order for the divisions of the colon is:
- Adescending, transverse, sigmoid, and ascending
- Bascending, transverse, sigmoid, and descending
- Csigmoid, ascending, traverse, and descending
- Dascending, transverse, descending, and sigmoid
28Microvilli Can be found in the:
- Astomach
- Bsmall intestine
- Clarge intestine
- DBoth B and C are correct
29The right angle between the transverse colon and the ascending colon is the:
- Acostal angle
- Bhepatic flexure
- Cleft colonic bend
- Dsplenic flexure
30A barium enema study is used to detect and locate:
- Apolyps
- Btumors
- Cdiverticula
- Dall of the above
31The fan-shaped projection of pertioneum that connects the small intestine to the posterior abdominal wall is the:
- Avisceral peritoneum
- Bgreater omentum
- Clesser omentum
- Dmesentery
32Phagocytic cells lining liver sinusoids are called _____ cells.
- Achief
- Balpha
- CKupffer
- Dhapatic
33Bile salts aid in the absorption of:
- Afats
- Bproteins
- Ccarboydrates
- Dcalcium, magnesium, and certain other minerals
34Surgical removal of the gallbladder is referred to as:
- Acholelithiasis
- Bcholecystitis
- Ccholecystectomy
- Dcholedochorrpaphy
35The most essential part of bile is:
- Abile salts
- Bbile pigments
- Ccholesterol
- Dbilirubin
36Bile is secreted by:
- Aparietal cells
- Bcrypts of lieberkuhn
- Ckupffer cells
- Dhepatic cells
37Which of the following is not a lobe of the liver?
- Aright lobe
- Bmedial lobe
- Cleft lobe
- Dcaudate lobe
- Equadreate lobe
38The hormone glucagon is produced by:
- Aacinar units
- Bbeta cells
- Calpha cells
- Dbrunner glands
39The cells that produce insulin are known as:
- Aacinar units
- Bbeta cells
- Calpha cells
- Dbrunner glands
40Which of the following is not a duct leading from the salivary glands to the oral cavity?
- Awharton ducts
- Branvier ducts
- Cstensen ducts
- Drivinus duct
41Which of the following is not a function of the stomach?
- AIt serves as a reservoir for storage of food
- Bit destroys pathogenic acteris
- Cit begins the absorption of proteins
- DAll of the above are functions of the stomach
42Which of the following is not a function of the pancreas?
- Ait produces digestive enzymes
- Bit produces bile
- Cit produces insulin
- Dall of the above are functions of the pancreas
43The right angle formed by the transverse colon and the descending colon is called the:
- Ahepatic flexure
- Bsigmoid clon
- Csplenic flexure
- Dsecondary colonic flexure
44The lamina propria is found in which level of the GI wall?
- Amucosa
- Bsubmocosa
- Cmuscularis
- Dserosa
45The myenteric plexus is found in which layer of the GI wall?
- Amucosa
- Bsubmucosa
- Cmuscularis
- Dserosa
46Meissner plexus is found in which layer of the GI wall?
- Amucosa
- Bsubmucosa
- Cmuscularis
- Dserosa
47Which of the following statements is true?
- Athe systic duct and the pancreatic duct join to form the common bile duct
- Bthe common bile duct is formed by the joining of the cystic duct from the liver and the hepatic duct from the gallbladder
- Cthe pancreatic duct and the hepatic duct join to form the common bile duct
- DNone of the above are true statements
48Which of the following statements is not true?
- Athe gallbladder can hold between 30 and 50 ml of bile
- Bthe gallbladder lies on the undersurface of the liver
- Cthe walls of the gallbladder have rugae similar to the ones found in the stomach wall
- Dthe gallbladder empties bile into the stomach to assist in fat digestion
49Heartburn is often caused by acid reflux. Which of the following might aggravate the reflux?
- Asmocking
- Bobesity
- Cspicy foods
- Dall of the above
50Which of the following is not a division of the stomach?
- Arugae
- Bbody
- Cpylonus
- Dfundus
51Which of the following is not a function of the liver?
- AStores vitamin A
- Bcarries on numerous steps in the metabolism of fats, carbohydreates and protens
- Csecretes bile
- Dstores bile
52Which of the following is not a function of the stomach?
- Asecretes gastic juices
- Bsecretes intrinsic factor
- Cproduces the hormone gastrin
- Dbegins deglutition
53Which of the following is true about the main organs of the digestive system?
- Athey are involved in chemical digestion only, not mechanical digestion
- Bthey do not produce the enzymes used in digestion; enzymes are produced by associate organs
- Cthey form a tube through the body called alimentary canal
- Dall of the above are true about the main organs of the digestion system
54Which of the following is not made up of nerves running through the walls of hte digestive system?
- Ameissner plexus
- Bauerbach plexus
- Cintramural plexus
- Dall of hte above are nerves running through the walls of the digestive system
55The oral fissure divides the:
- Aupper lip from the lower lip
- Bcheck muscle from the teeth
- Cright and left sides of the palate
- Dright side of the tongue from the left side of the tongue
56Which structure helps anchor the tongue in the floor of the mouth?
- Aphiltrum
- Bpilca fimbriata
- Cfrenulum
- Dfauces
57Which of the following is not a main part of the tooth?
- Acrown
- Benamel coat
- Croot
- Dneck
58Which part of the stomach actually lies above the entrance of the esophagus?
- Afundus
- Bpylorus
- Cbody
- Dlesser curvatre
59Which of the following is true about bile?
- Ait is made in the gallbladder, stored in the gallbladder, and emptied into the duodenum
- Bit is made in the liver, stored in the gallbladder, and emptied into the stomach
- Cit is made in the gallbladder, stored in the liver, and emptied into the jejunum
- Dit is made in the liver, stored in the gallbladder, and emptied into the duodenum.
60The fauces opens into the:
- Alarynx
- Blaryngoparynx
- Coropharynx
- Dnasopharynx
61Dentin comes in direct contact with what substance above the gum line?
- Aenamel
- Bcementum
- Cthe periodontal membrane
- Dboth B and C
62Dentin comes into direct contact with what substance below the gum line?
- Aenamel
- Bcementum
- Cthe periodontal membrane
- Dboth B and C
63Which statement explains what happens to toxic substances after detoxification by liver cells?
- Athey are used to increase pH for optimum amylase function
- Bthey are used to dilute food and other substance and facilitate mixing of foods in the small intestine
- Csmall amounts are carried by mucus and sodium bicarbonate to the small intestine for use in digestion
- Dthey are hanged into nontoxic compounds by a series of chemical reactions
64Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus?
- Aoropharynx
- Bnasopharynx
- Clarynx
- Dmouth
65The process of swallowing is known as:
- Amastication
- Bdeglutition
- Cperistalsis
- Dsegmentation
66Which of the processes of mechanical digestion involves the esophagus?
- Adeglutition
- Bperistalsis
- Cchurning
- Dboth A and B
67The enterogastric reflex causes:
- Asecretion of digestive enzymes in the small intestine
- Bsecretion of digestion enzymes in the stomach
- Cinhibition of gastric peristalsis
- Dacceleration of gastric peristalsis
68The purpose of peristalsis is to:
- Abreak apart chunks of food and mix it in digestive juices
- Bpropel food forward along the GI tract
- Cabsorb food
- Denable swallowing
69The hormone that inhibits gastric muscle, slowing passage of food into the duodenum, is called:
- Agastric inhibitory peptide
- Benterogastrone
- Cchyme
- Dcholecystokinin
70Structurally, enzymes are:
- Alipids
- Bcarbohydreates
- Cproteins
- Dinorganic compounds
71Hydrolysis refers to:
- Abreaking down a molecule of water to hydrogen and oxygen has
- Busing water to split larger compounds into smaller ones
- Cusing water to build larger compounds into smaller ones
- Dnone of the above
72Polysaccharides are hydrolyzed into disaccharides by enzymes known as:
- Alipase
- Bproteases
- Cmaltase
- Damylase
73The final product of carbohydrate digestion is a:
- Adisaccharide
- Bmonosaccharide
- Cpolysaccharide
- Dfatty acid
74Which of the following is a disaccharide?
- Aglucose
- Bstarch
- Csucrose
- Dglycogen
75The major final product that results from the digestion of carbohydrates is:
- Aglucose
- Bsucrose
- Clactose
- Dmaltose
76The process of fat emulsification consists of:
- Achemically breaking down fat molecules
- Bthe secretion of digestive juices for fat digestion
- Cabsorption of fats
- Dbreaking fats into small droplets
77The enzyme pepsin begins the digestion of:
- Acarbohydrates
- Bprotein
- Cfat
- Dnucleic acids
78An end product of fat digestion is:
- Aglycerol
- Bglucose
- Cglycogen
- Dgalactose
79Cellulose is a residue of digestion that comes from:
- Acarbohydrates
- Bmeat proteins
- Cundigested fats
- Dundigested connective tissue
80The hormone that stimulates the release of bicarbonate substance from the pancreas is:
- Aenterogastrone
- Bsecretin
- Cgastrin
- Dcholecystokinin-pancrozymin
81The hormone that stimulates the gallbladder to release bile is:
- Aenterogastrone
- Binsulin
- Cgastrin
- Dcholecystokinin
82Which phase(s) of gastric secretion is(are) stimulated by the sight, taste, and smell of food?
- Aintestinal phase
- Bcephalic phase
- Cgastric phase
- Dall of the above
83The major site for the absorption of the end products of digestion is the:
- Astomach
- Bsmall intestine
- Ccecum
- Dlarge intestine
84The intestinal hormone cholecystokinin:
- Acauses the pancreas to increase exorine secretions high in enzyme content
- Bopposes the influence of gastrin on gastric parietal cells
- Cstimulates the contraction of the gallbladder
- Ddoes all of the above
85Bicarbonates are useful in the GI tract to:
- Aneutralize hydrochloric acid
- Bbreak down fats
- Cactivate secretin
- Dactivate pepsin
86The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is:
- Avasoactibe intestinal peptide
- Benterogastrone
- Csecretin
- Dcholecystokinin-pancreozymin
87Chylomicrons are formed to facilitate the transport of:
- Aamino acids
- Bfats
- Cgluose
- Dvitamins
88Glucose moves from the GI tract into the circulatory system by the process of:
- Adiffusion
- Bcotransport
- Cfacilitated diffusion
- Dfiltration
89Which blood vessel carries absorbed food from the GI tract to the liver?
- Ahepatic artery
- Bhepatic vein
- Cportal vein
- Drenal artery
90Rotavirus can cause what life threatening condition in infants
- Aconstipation
- Bdiarrhea
- Ccholera
- Dpyloric stenosis
91The substances absorbed into the lymph capillaries are:
- Aglycerol and fatty acids
- Bglucose and glycerol
- Camino aids and fatty acids
- Dglucose and amino acids
92Which of these is not an example of mechanical digestion?
- Amoistening the food
- Bchanging food from large to small particles
- Cpropelling food through the digestive tract
- Dall of the above are examples of mechanical digestion
93The enzyme amylase functions best in a __________pH
- Aslightly acid
- Bslightly base
- Cneutral
- Dboth A and C are correct
94Contact digestion occurs in which location in the digestive system?
- Amouth
- Besophagus
- Cstomach
- Dsmall intestine
95The disaccharide maltose is made up of which two saccharide units?
- Aglucose and glucose
- Bglucose and fuctose
- Cglucose and galactose
- Dnone of the above
96The disaccharide lactose is made up of which two saccharide units?
- Aglucose and glucose
- Bglucose and fructose
- Cglucose and galactose
- Dnone of the above
97The process of emulsification is important in the digestion of:
- Amuscus
- Bprotein
- Cfats
- Dpolysaccharides
- Edisaccharides
98Saliva contains all of the following substances except:
- Aamylase
- Blipase
- Cintrinsic factor
- Dmucus
99Gastric juice contains all of the following substances except:
- Aintrinsic factor
- Benterokinase
- Chydrochloric acid
- Dpepsin
100Pancreatic juice contains all of the following substances except:
- Aamylase
- Btrypsinogen
- Centerokinase
- Dbilirubin
101Pancreatic juice contains all of the following substances except:
- Achymotrypsin
- Bnucleases
- Camylase
- Dpepsinogen
102Segmentation is different from peristalsis because:
- Asegmentation only occurs in the stomach
- Bit is a type of mechanical digestion
- Cit does not move food through the digestive tract
- Dthere is no difference between segmentation and peristalsis
103Which of the following works with gastric inhibitory peptide to inhibit gastric peristalsis?
- Aretropulsion
- Bcholecystokinin
- Cthe enterogastric reflex
- Dboth B and C
104which monosaccharide is found in all three of the most common disaccharides?
- Afructose
- Bglucose
- Cgalactose
- Dlevulose
105which of the following protein-digesting enzymes is made in the stomach?
- Atrypsin
- Bchymotrypsin
- Cpepsin
- Dpeptidase
106Which of the following is not a digestive enzyme for lipids?
- Abile
- Blipase
- Cphospholipase
- Dall of the above are digestive enzymes for lipids
107which of the following is not a stage in degulutition?
- Agastric
- Boral
- Cpharyngeal
- Desophageal
108the enzyme amylase is produced by the:
- Astomach
- Bpancreas
- Csalivary glands
- Dboth B and C are correct
109The end product of amylase digestion is:
- Aglucose
- Bmaltose
- Cfructose
- Dsucrose
110The end product of lipase digestion is:
- Afatty acids
- Bmonoglycerides
- Cglycerol
- Dall of the above
111The parietal cells of the stomach do not produce which of the following?
- Apepsinogen
- Bhydrochloric acid
- Cintrinsic factor
- Dthe parietal cell of the stomach produces all of the above
112After the absorption of a large meal, high levels of glucose and amino acids would be found in the:
- Alacteals of the billi
- Bblood of the inferior vena cava
- Cblood in the hepatic portal system
- DBoth A and C are correct
113Most enzymes catalyze a chemical reaction in both directions. Which is the best explanation of this statement?
- Achemical reaction in both directions means the direction and rate of the reaction is being governed by gravity; for example, food in the lower digestive tract is moved by segmentation
- Bchemical reaction in both directions means that enzymes are both intracellular and extracellular, depending on whether they act within cells or outside them in the surrounding medium
- Cchemical reaction in both directions means the direction and rate of the reaction is being governed by the rate law or law of mass action; for example, slowing of digestion when absorption is interfered with and products of digestion accumlated
- Dboth B and C are accurate explanations
114Which of the following best describes the enzymatic role in carboydrates digestion?
- Aamylase, sucrase, lactase, and maltase catalyze the breakdown of carboydrates to glucose
- Bpepsin, trypsin, chymotrypsin, and peptidase catalyze the breakdown of carbohydreates to glucose
115why can it be said that absorption is the reason for digestion?
- Aeven though digestion includes the processes of mechanical and chemical breakdown of ingestion food, the optimum goal of digestion is to absorb nutrietns
- Bthe absorption process facilitates the emulsificaton of fats by breaking large fat drops into small droplets
- Cabsorption involves the grinding action of the teeth and the mechanical mixing of food as it passes through the gastrointestinal tract, thus allowing regulation of digestion
- Dfluid balance, maintenance of core body temperature, numerous circadian rhythms, and regulation of pH and metabolic rates are included as parts of absorption process.
116Which statement best explains the process of absorption?
- Aabsorption is the process of taking food into mouth and starting it on its journey through the digestive tract.
- Babsorption releases digestive juices
- Cabsorption is the movement by the muscular components of the digestive tube, including processes of mechanical digestion; examples include peristalsis and segmentation
- Dabsorption is the passage of substances through the intestinal mucosa into the blood or lymph
117layer of the GI tract that contains Meissner plexus
- Amuscularis layer
- Bserosa layer
118largest of the salivary glands; produces enzymes but not mucus
- Aparotid salivary gland
- Bdentin
119layer of the GI tract that wraps around the submucosa and contains the myenteric plexus
- Asubmucosa layer
- Btongue
120hard inorganic substance that covers the crown of the tooth
- Adentin
- Benamel
121mixed salivary gland that is drained by wharton ducts
- Asubmandibular salivary gland
- Bsublingual salivary gland
122outermost GI tract layer that is actually the visceral peritoneum
- Aserosa layer
- Bparotid salivary gland
123smallest of the salivary glands
- Asublingual salivary gland
- Btongue
124innermost layer of the GI tract; contains the lamina propria
- Amucosa layer
- Benamel
125substance that makes up the greatest portion of the tooth shell
- Aenamel
- Btongue
126structure whose intrinsic and extrinsic muscles help with mastication and deglutition
- Atongue
- Bdentin
Información
- Descripción
- immunity test Test sobre digestive, creado por Anjetta Johnson el 24/08/2017.
- Autor
- Anjetta Johnson
- Idioma
- English
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