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N935 Advanced Pathophysiology > GI Physiology > Flashcards

GI Physiology Flashcards

1
Q 
Chyme is produced in
    A. Liver
    B. Stomach
    C. Duodenum
    D. Pancreas
A

B. Stomach

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2
Q 
Most absorption of nutrients occurs in
    A. Esophagus
    B. Stomach
    C. Small Intestine
    D. Large Intestine
A

C. Small intestine

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3
Q 
Site where most of parietal (oxyntic) cells locate in the stomach (select all that apply)
A. Fundus
B. Body
C. Cardia
D. Pylorus
A

A. Fundus

B. Body

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4
Q 
Gastrin is secreted from
    A. Neck Cells
    B. Gastric Cells
    C. ECL cells
    D. Chief cells
A

B. Gastric Cells

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5
Q 
Primary type of esophageal motility during digesting food is
    A. Tonic contraction
    B. Segmentation
    C. Peristalsis
    D. Migrating Myoelectric complex
A

C. Peristalsis

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6
Q 
Use of antacids with and after meal for heartburns is associated with greater than normal secretion of \_\_\_\_\_\_.
	A. Nitric Oxide (NO)
	B. Gastrin
	C. Somatostatin
	D. Secretin
A

B. Gastrin

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7
Q

A patient with Celiac disease has: (select all that apply)
A. Decreased luminal digestion of foods within the small intestine
B. Osmotic diarrhea due to unabsorbed foods entering the colon
C. Decreased absorption of foods by the small intestine
D. Increased release of Nitric oxide (NO)

A

A. Decreased luminal digestion of foods within the small intestine
B. Osmotic diarrhea due to unabsorbed foods entering the colon
C. Decreased absorption of foods by the small intestine

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8
Q

The most important function of ileocecal value is:
A. Slows emptying of chyme from the stomach
B. Allows mixing of the food with gastric secretion
C. Prevents backflow of contents into the small intestine
D. Assists storage of fecal material until defecation reflex occurs

A

C. Prevents backflow of contents into the small intestine

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9
Q 
Parietal cells secrete intrinsic factor, a carrier protein necessary for absorption of \_\_\_\_\_\_.
    A. Vitamin B12
    B. Amino Acids
    C. Vitamin K
    D. Vitamin D
A

A. Vitamin B12

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10
Q 
Which of the following might be absorbed in the stomach? (Select 2)
	A. Asprin
	B. Alcohol
	C. Water
	D. Coffee
A

A. Asprin

B. Alcohol

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11
Q 
Pancreatic duct cells secrete \_\_\_\_.
    A. Histamine
    B. Intrinsic Factor
    C. HCO3
    D. Pepsinogen
    E. Somatostatin
A

C. HCO3

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12
Q 
Glucose is absorbed by the GI tract and delivered into the blood stream by \_\_\_\_\_\_\_\_\_\_\_.
    A. Active transport
    B. Simple diffusion
    C. Osmosis
    D. Secondary active transport
A

D. Secondary active transport

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13
Q 
Which of the following factors increase gastric acid secretion? (Select all that apply)
	A. Histamine
	B. Norepinephrine
	C. Gastrin
	D. Acetylcholine
A

A. Histamine
C. Gastrin
D. Acetylcholine

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14
Q 
Zymogens are produced in the \_\_\_\_\_\_\_\_\_\_.
    A. Small Intestine
    B. Pancreas
    C. Salivary glands
    D. Esophageal
    E. Liver
    F. Gallbladder
A

B. Pancreas

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15
Q 
Acidic chyme is neutralized rapidly in the \_\_\_\_\_\_\_\_\_.
    A. Esophagus
    B. Stomach
    C. Duodenum
    D. Cecum
A

C. Duodenum

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16
Q

A 27yo male develops severe vomiting for 48 hours.
A. Metabolic acidosis due to loss of bile salts and bicarbonate
B. Metabolic alkalosis due to loss of proton
C. Metabolic alkalosis due to loss of gastric mucus and intrinsic factors

A

B. Metabolic alkalosis due to loss of proton

17
Q 
A 27yo male develops severe vomiting for 48 hours. His minute ventilation is:
    A. Increased to maintain Oxygenation
    B. Decreased to retain CO2
    C. Decreased to retain Nitrogen
    D. Increased to give up HCO3
A

B. Decreased to retain CO2

18
Q

In the fed state, segmentation depends on:
A. An intact enteric nervous system
B. An intact parasympathetic nervous system
C. An intact sympathetic nervous system
D. Occurs only in the stomach

A

A. An intact enteric nervous system

19
Q

If an electrical slow-wave passes through a region of the ileum that is stretched due to the presence of food, then:
A. The resting membrane potential is hyperpolarized
B. An action potential is generated
C. A graded potential is generated
D. The slow wave is inhibited

A

B. An action potential is generated

20
Q

In individuals with lactose intolerance, the lumen of the colon contains osmotically active material that is ________ leading to an influx of water from the body (diarrhea).
A. Hypertonic to the intestinal cells
B. Hypotonic to the intestinal cells
C. Isotonic to the intestinal cells

A

A. Hypertonic to the intestinal cells

N935 Advanced Pathophysiology (15 decks)

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