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Block 4 Found Sci > VI- Esophageal and Gastric Motility > Flashcards

VI- Esophageal and Gastric Motility Flashcards

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1
Q

primary peristalsis

A

vagovagal regulation
-mechanoreceptors sense bolus,
-vagal efferent branches

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2
Q

secondary peristalsis

A

protective vs acid
-mediated by ENS
-stimulated by low pH or distension from bolus
-contractions upstream and relaxes downstream

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3
Q

antral systole

A

process of churning in the stomach
-contents are moved retropulsively against closed pylorous so smashed

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4
Q

emptying of stomach

A

delivery of food to duodenum depends on contents so
-glucose fastest
-proteins and lipids slow down

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5
Q

parts of storing in stomach

A
  1. receptive relaxation- stim by swallowing in anticipation of food, reg by vagovagal
  2. gastric accomodation - stim by gastric duodenal filling or stretch, reg by ENS
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6
Q

neurotransmitters in emetic resp

A
  1. 5-HT aka serotonin
  2. Ach
  3. dopamine
  4. histamine
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7
Q

causes of emetic resp

A
  1. meds
  2. GI disorders
  3. CNS resp
  4. endocrine
  5. infection
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Block 4 Found Sci (67 decks)

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