true or false

The submucosa is in direct contact with food?

true or false

bile digests fats and related lipids

1.  ingestion/mouth

2.  secretion/saliva mouth/stomach acid

3.  motility

4.  digestion

5.  absorption

6.  elimination

Lingual lipase is present in

a.  bile

b.  saliva

c.  gastric secretion

d.  taste buds

1.  Mucosa

a.  epithelium

b.  lamina propria

c.  muscularis

2.  Submucosa

3.  Muscularis(externa)

4.  Serosa

a.  parietal and visceral peritoneum

b.  greater omentum

c.  lesser omentum

d.  messentery

________ is the strongest material in the body

a.  periodontal ligament

b.  cementum

c.  enamel

d.  dentin

In the mouth, esophagus, and anus=stratified squamous

In the small intestine=simple columnar

Which would produce pepsinogen?

a.  chief cells

b.  parietal cells

c.  enteroendocrine cells

d.  mucous cells

Which produces HCl's?

a.  enteroendocrine cells

b.  mucous cells

c.  chief cells

d.  parietal cells

What is

1.  ingestion

2.  digestion

3.  mastication

4.  deglutition

5.  starch digestion

1.  ingesting food

2.  mechanical=mastication

chemical=starch digestion(salivary amylase)

3.  chewing

4.  swallowing

5.  salivary amylase

Which does the stomach produce?

a.  mucous and amylase

b.  bile and trypsin

c.  HCl and intrinsic factor

What is

1.  the periodontal ligament

2.  crown

3.  root

4.  dentin

5.  pulp

1.  what holds tooth in socket

2.  the part of the tooth you see

3.  the part of the tooth you don't see

4.  hard because teeth are made up of dentin

5.  spongy tissue that fills the inner cavity

Which is NOT part of the digestive tract?

a.  salivary glands

b.  stomach

c.  cecum

d.  esophagus

e.  duodenum

Which sequence is correct?

a.  mucosa-muscularis externa-submucosa-serosa

b.  submucosa-mucosa-muscularis externa-serosa

c.  serosa-mucosa-muscularis externa-submucosa

d.  mucosa-submucosa-muscularis externa-serosa

What are the extrinsic salivary glands?

extrinsic=outside mouth

parotid=in front of ear

sublingual=ducts under the tongue

submandibular=under mandible

Matching

1.  secretin          A.  Increases secretions of enzyme rich pancreatic juices

2.  CCK          B.  Inhibits gastric gland secretions

1-B

2-A

What is the stomach lining protected by?

Matching

1.  crown     A.  embedded in the jawbone

2.  root     B.  forms support of the gumphosis

3.  cementum     C.  calcified connective tissue around the bottom of the tooth

4.  periodontal ligament     D.  exposed cover in enamel

1-D

2-A

3-C

4-B

How many liters of water can the stomach hold?

What percentage is water?

1-1 1/2 liters

97-99.5%

The lining of the stomach get eroded away

Matching

1.  salivary amylase     A.  Begins carbohydrate digestion in the mouth

2.  trypsin      B.  emulsifies fat digestion

3.  bile     C.  brush border enzymes that act on disaccharides

4.  sucrase, lactose, maltose     D.  digests proteins in the SI

1-A

2-D

3-B

4-C

salivary amylase and lingual lipase

The amylase is active in the mouth and the lipase is not activated in the stomach

Matching

1.  rugae     A.  located at the inferior end and controls stomach emptying

2.  pyloric sphincter     B.  folds of mucosal layer

3.  cardiac sphincter     C.  lies at superior end and regulates food movement from the esophagus

4.  body     D.  able to stretch and hold large amounts of food

1-B

2-A

3-C

4-D

What happens during peristaltic action with

1.  Water and HCl

2.  It kills what

3.  It inactivates what

4.  It denatures what

5.  It activates what

1.  mix with materials you ingest

2.  bacteria

3.  salivary amylase

4.  proteins in food

5.  lingual lipase

pepsinogen to pepsin( the active protein digesting enzyme)

Matching

1.  parotid gland     A.  large saliva gland lying near the ear

2.  oropharynx     B.  smaller salivary gland located under the jaw

3.  submandibular gland     C.  soft palate to epiglottis

4.  secures the tongue to the floor of the oral cavity     D.  lingual frenulum

1-A

2-C

3-B

4-D

1. touch, pressure, taste receptors(medulla and pons)

2.  autonomic nervous system

3.  sight, smell and thought(limbic and hypothalamus

Matching

1.  in direct contact with indigested food    A. serosa

2.  dense connective tissue with many elastic fibers   B. muscularis

3.  longitudinal and circular layers of smooth muscle

C.  submucosa

4.  same structrure as visceral peritoneum

D.  mucosa

1-D

2-C

3-B

4-A

Matching

1.  ingestion     A.  passage of digested material from the lumen of the GI tract into the blood or lymph

2.  mechanical digestion    B.  elimination of indigestible solids

3.  chemical digestion     C.  enzymatic degradation of foodstuffs into simpler molecules

4.  absorption     D.  taking food into the digestive system

5.  defecation     E.  chewing, mixing, churning and segmentation of food

1-D

2-E

3-C

4-A

5-B

Matching

1.  chief     A.  phagocytic

2.  islet     B.  makesw intrinsic factor

3.  parietal     C.  makes hormones

4.  kupffer     D.  produces an inactive enzyme

1-D

2-C

3-B

4-A

The 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

1.  stores, mixes, and liquifies food

2.  chemical digestion/ proteins and triglycerides

3.  absorption/H20, ions, aspirin, and alcohol

Which enzyme digests dissacharides into monosaccharides?

a.  rennin

b.  pepsin

c.  lipase

d.  sucrase

1.  cardiac

2.  fundus

3.  body

4.  pyloris

Which of the following is not an enzyme?

a.  rennin

b.  lipase

c.  pepsin

d.  bile

Which of the following is not an enzyme found in adults?

a.  carboxypolypeptidase

b.  lipase

c.  rennin

d.  chymotryposin

Amylase allows us to digest:

a.  carbohydrates

b.  proteins

c.  fats

d.  all of these

a.  mucus cells

b.  parietal cells

secrete:HCl and intrinsic factor(vitamin B12 absorption)

c.   chief cells

secret:pepsinoge,and rennin and gastric lipase

d.  enteroendocrine cells

cells that specifically secrete the hormone gastrin, stimulates secretion of gastric juicess

This hormone triggers the release of enzyme rich pancreatic juice.

a.  CCK

b.  secretin

c.  gastrin

d.  bile

This substance secreted by the pancreas helps neutralize the chyme

a.  chymotrypsin

b.  bile

c.  trypsin

d.  bicarbonate

1.  mucus

2.  regeneration of cells

3.  tight junctions

Most of the digestive enzymes found in the SI are secreted by this accessory hormone

a.  liver

b.  gallbladder

c.  stomach

d.  pancreas

a.  stimulation of the parasympathetic division

cerebral cortex to hypothalamus to medulla to vagus nerve to parasympathetic neurons

b.  stretch receptors and chemoreceptors(pH)

c.  intestinal hormones made by cells of the SI get secreted into the blood

secretin=decreased gastric secretion

CCK=inhibits stomach emptying

The gastric cells that secrete pepsinogin are the

a.  mucous neck cells

b.  parietal cells

c.  chief cells

d.  enteroendrocrine cells

Saliva is mainly composed of

a.  water

b.  amylase

c.  lingual lipase

d.  mucin

The esophageal hiatus is found here

a.  esophagus

b.  stomach

c.  diaphragm

d.  pharynx

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

a.  ventral messentary

b.  visceral peritoneum

c.  parietal peritoneum

d.  retroperitoneum

What histological layer of the alimentary canal is A.K.A as the visceral peritoneum

a.  submucosa

b.  muscularis

c.  serosa

d.  mucosa

1.  carbohydrate digestion=pancreatic amylase

2.  protein digestion=a.  trypsinogen to trypsin by enterokinase

b.  trypsin converts:  chymotrypsinogen to chemotrypsin

c.  procarboxypeptidase to carboxypeptidase

d.  proelastase to elastase

Enterokase is made in thie SI not the pancreas

3.  lipid digestion=secretes pancreatic lipase

4.  nucleic acid digestion=RNA and DNA

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

a.  submucosa

b.  muscularis

c.  serosa

d.  mucosa

secretin=stimulates secretion of HCO3-

CCK=stimulates secretion of pancreatic digestive enzymes

All of the following are part of the alimentary canal except

a.  pharynx

b.  esophagus

c.  SI

d.  tongue

Peristalsis is part of which digestive process

a.  absorption

b.  ingestion

c.  propulsion

d.  chemical digestion

Before the blood carrying the products of protein digestion reaches the heart, it first passes through capillary networks in

a.  the spleen

b.  the lungs

c.  the liver

d.  the brain

The products of protein enter the bloodstream largely through cells lining

a.  the stomach

b.  the SI

c.  the LI

d.  the bile duct

The protein molecule will be digested by enzymes secreted by

a.  the mouth, stomach and colon

b.  the stomach, liver and SI

c.  the SI, mouth and liver

d.  the pancreas and stomach

The vitamin associated with calcium absorption is

a.  A

b.  K

c.  C

d.  D

1.  produces bile

2.  maintains blood glucose

3.  detoxifies alcohol and drugs

4.  stores, glycogen, iron,vitamins A D E K  

5.  produces urea

6.  removes bilirubin

7.  regulates blood cholesterol

8.  synthesizes plasma proteins

The digestive juice product containing enzymes capable of digesting all four major foodstuff categories is

a.  pancreatic

b.  gastric

c.  salivary

d. biliary

The parasympathetic nervous system influences digestion

a.  relaxing smooth muscle

b.  stimulating peristalsis and secretory activity

c.  constricting sphincters

d.  none of these