Pathology Lesson 10 (Gastro) Flashcards
A person with lactose intolerance presents with what kind of diarrhea?
a) Osmotic
b) Hydrostatic
c) Colloidal
d) Hyperstatic
a) Osmotic
You have a big fight with your boyfriend / girlfriend. Why does your stomach hurt?
a) GI is affected by mood
b) Your stomach muscles are cramped due to excessive crying.
c) Your boyfriend / girlfriend punched you in the stomach.
a) GI is affected by mood
True or false:
There is an anotomical landmark separating the jejunum and ileum.
False
What separates the ilieum and cecum?
a) Ileocecal notch
b) Ileocecal junction
c) Ileocecal valve
d) None of the above
c) Ileocecal valve
What is the innermost layer lining the lumen of the alimentary canal called?
a) Mucosa
b) Submucosa
c) Muscularis externa
d) Serosa
a) Mucosa
What is the mucosa comoposed of?
a) Basal ganglia
b) Surface epithelium
c) Lymph nodes
d) Connective tissue
e) A and C
f) B and D
f) B and D
(Surface epithelium and connective tissue)
What is the mucosa surrounded by?
a) Smooth muscle
b) Mucus
c) Digestive enzymes
d) A and B
d) A and B
(Thin layer of smooth muscle and mucus… digestive enzymes are secreted.)
What cells in the mucosa secrete mucus for lubrication?
a) Chalice cells
b) Mucocrine cells
c) Goblet cells
d) None of the above
c) Goblet cells
Which of the following is/are true for mucosal folds?
a) Increase surface area for reabsorption
b) Allow for expansion after Thanksgiving meal
c) Both of these are true
d) Neither of these are true
b) Allow for expansion after Thanksgiving meal
(It is not “c” because it increases surface area for absorption not reabsorption)
What is the submucosa composed of?
a) Soft connective tissue
b) Epithelial cells
c) Smooth muscle
d) Visceral peritoneum
a) Soft connective tissue
Which of these are not part of the submucosa?
a) blood vessels
b) nerve endings
c) goblet cells
d) lymph vessels
e) lymph nodes
c) goblet cells
(These are in the mucosa)
What is the muscularis externa composed of?
a) two layers of smooth muscle in alimentary canal
b) three layers of smooth muscle in alimentary canal
c) three layers of smooth muscle in stomach
d) A & C
d) A & C
The outer layer of muscularis externa of alimentary canal runs?
a) longitudinally
b) transversely
c) vertically
d) obliquelly
a) longitudinally (in the direction of the canal)
The inner layer of muscularis externa is?
a) longitudinal
b) transverse
c) vertical
d) oblique
d) oblique
What is the coordinated unit of the muscularis externa known as?
a) Sarcolemma
b) Syncytium
c) Peyer’s Patches
b) Syncytium
What is the outermost layer of the wall of the alimentary canal?
a) Mucosa
b) Submucosa
c) Muscularis externa
d) Serosa
d) Serosa
The serosa makes up _________ __________ for most of the alimentary canal.
a) parietal peritoneum
b) parietal pericardium
c) visceral peritoneum
d) parietal pleura
c) visceral peritoneum
The following are all features of the serosa except:
a) produces and secretes serous fluid
b) composed of layer of connective tissue
c) outermost layer of wall
d) makes up parietal peritoneum
d) makes up parietal peritoneum
(it is visceral peritoneum)
The submucosal plexus controls which of the following:
a) gastrointestinal secretions
b) alimentary contraction (repulsion)
c) local blood flow
d) A and C
e) All of the above
d) A and C
(GI movements are controlled by Myenteric plexus)
If you see a bear, ____________ stimulation will occur and ________________ will be shut down.
a) Sympathetic; parasympathetic
b) Parasympathetic; sympathetic
a) Sympathetic and parasympathetic
All of the following are part of the digestive proccess except:
a) Chemical digestion
b) Propulsion
c) Storage
d) Eating
e) None of the above
e) None of the above
All of the following take place in the stomach except:
a) Mixing and propulsion primarily by segmentation
b) Secretion of HCl
c) Digestion of proteins and fats
d) Absorption of lipid-soluble substances
a) Mixing and propulsion primarily by segmentation
(Stomach only has mixing and propulsion –> segmentation happens in small intestines)
ECL cells secrete:
a) HCl
b) Mucous and HCO3-
c) Gastrin
d) Histamine
e) Both A and B
d) Histamine
(ECL are the neuroendocrine cells in the gut)
What stimulates secretion of saliva?
a) Parasympathetic
b) Alpha Adrenergic
c) Beta Adrenergic
d) Sympathetic
e) A and C
f) None of the above
e) A and C
(Parasympathetic and Beta adrenergic)
All of the following are true about saliva except:
a) Carbohydrate digestion (amylase)
b) Has Immunoglobulins
c) Absorbs food chemicals
d) Assists in swallowing
c) Absorbs food chemicals
(Does not absorb, it dissolves food chemicals - taste)
Deglutination is:
a) the act of chewing
b) the act of swallowing
c) the act of breaking down
d) both A and C
b) The act of swallowing
How much saliva do we make in one day?
a) 1 mL
b) 1 L
c) 2 L
d) 10 L
b) 1 L
Which of the following is not a gland in the mouth?
a) Submaxillary gland
b) Sublingual gland
c) Parotid gland
d) Submandibular gland
e) All of them are glands in the mouth.
a) Submaxillary gland
Which of the following is not a human permanent tooth?
a) Premolars (bicuspids)
b) Canine (eyetooth)
c) Fourth molar
d) Incisors
c) Fourth molar
(There are only three)
Which of the following is/are true of lower esophageal sphincter (LES)?
a) AKA cardiac sphincter
b) Muscular ring at the top of the esophagus
c) When closed, prevents acid content reflux
d) A and C
e) All of the above
d) A and C
Muscular ring at the top of the esophagus is the upper esophageal sphincter (UES)
Which of the following allows bolus to enter the stomach?
a) Gastroesophageal sphincter
b) Cardiac sphincter
c) Lower esophageal sphincter (LES)
d) A and C
e) All of the above
e) All of the above
Which of the following is/are not roles of the stomach?
a) Absorption of fat soluble substances
b) Break-down of carbohydrates
c) Chemical digestion
d) Enteroendocrine function
e) They are all correct
b) Break-down of carbohydrates
(That happens in the mouth)
How much food can the stomach hold?
a) 1 L
b) 2 L
c) 4 L
d) There is not limit
c) 4 L
Parietal cells secrete which of the following?
a) HCl
b) Gastrin
c) Intrinsic factor
d) Somatostatin
e) A and C
f) B and D
e) A and C
(HCl and Intrinsic factor)
Chief cells secrete which of the following?
a) HCl
b) Gastrin
c) Intrinsic factor
d) Somatostatin
e) Pepsinogen
f) A and C
e) Pepsinogen
Enteroendocrine cells secrete which of the following?
a) HCl
b) Gastrin
c) Intrinsic factor
d) Somatostatin
e) A and C
f) B and D
f) B and D
(Gastrin and Somatostatin)
Gastrin stimulates all of the following except what?
a) Absorption of lipids
b) Stomach secretory activity
c) Gastric emptying
d) Contraction of intestine
a) Absorption of lipids
Which of the following is/are true of somatostatin?
a) Inhibits gastric emptying
b) Stimulates stomach secretion
c) Secreted by stomach and jejunum
d) All of the above
a) Inhibits gastric emptying
- It inhibits stomach secretion
- It is secreted by stomach and duodenum
A patient was diagnosed with pancreatic cancer. The doctor was hopeful because they caught it early. Where in the pancreas did they find the cancer?
a) Head
b) Neck
c) Body
d) Tail
a) Head
Which of the following is/are duodenal hormones?
a) Secretin
b) Pepsin
c) Cholecystokinin (CCK)
d) All of the above
e) A and C
e) A and C
(Pepsin is in the stomach)
All of the following are true about secretin except:
a) Inhibits gastric gland secretion
b) Inhibits gastric motility
c) Increases output of pancreatic juice
d) Increases bile output
e) They are all true
e) They are all true
All of following are true of Cholecystokinin (CCK) except:
a) Stimulates gallbladder to expel bile
b) Increases production of pancreatic juices
c) Stimulated by acidic chyme
d) They are all true
c) Stimulated by acidic chyme
(This is true of secretin)
Which of the following is/are true?
a) Liver stores bile
b) Bile is a fat emulsifier
c) Gallbladder produces bile
d) A and C
b) Bile is fat emulsifier
- Liver produces bile
- Gallbladder stores bile
What is the breakdown product of bile?
a) Salts
b) Pigments
c) Bilirubin
d) Cholesterol
e) Fats
c) Bilirubin
(All of the other choices are components of bile)
What is recycled during enterohepatic circulation?
a) Bile Salts
b) Pigments
c) Bilirubin
d) Cholesterol
e) Fats
f) A and C
a) Bile salts
Which one of these transports amino acids, glucose, and fructose?
a) Active transport
b) Secondary active transport
c) Simple diffusion
d) Osmosis
b) Secondary active transport
(Slide 17)