Flash GI diseases

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8 Terms

1
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What is vomiting?

  • Active expulsion 

  • Contraction of diaphragm & abdominal muscles 

  • “heaving”

2
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What is regurgitation?

Passive expulsion, often before it reaches stomach

3
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What controls vomiting?

Emetic (vomiting) center (found in brain)

4
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What are the triggers of vomiting?

  • Vestibular response: motion sickness

  • High brain processing (sigh/smell)

  • Mechanical irritation (physical object) 

  • Toxins → monitored by chemoreceptor trigger zone 

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What is diarrhea?

Clinical sign of loose, watery stool

6
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What are pathophysiological mechanisms of diarrhea?

  1. Hyposecretion

  2. maldigestion/malabsorption

  3. Increased permeability

  4. Osmotic

  5. Altered motility

7
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Why are parvovirus so destructive?

Cryptes (in SI) destroyed, stem cell no no, indirect destruction of villi

8
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What is pancreatitis?

  • Inflammation of pancreas

  • Unknown cause, can be exposure to fatty food

Effects: 

Can inflame neighboring organs