NBME 21 Release of cholecystokinin (NBME Answers)

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Retired NBME 21 Answers

nbme21/Block 4/Question#28 (reveal difficulty score)
A 56-year-old man undergoes surgical ...
Release of cholecystokinin 🔍 / 📺 / 🌳 / 📖
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submitted by ∗madojo(212)

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CholecystokinIn is secreted from the I cells of the duodenum and jejunum.
Gastrin is released from the G cells of the antrum of the stomach.
IF is secreted by the stomach and absorbed in the terminal ileum with B12.
Pepsin is secreted from the chief cells of the stomach and plays a role in protein digestion.
Secretion of VIP increases intestinal water and electrolyte secretion by acting on the parasympathetic ganglia

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nobody PAGE 365 FA 2019 +2

mumenrider4ever FA 2020 pg. 371 +

ali_hassan pg. 365 2018 +

-4 upvote downvote
submitted by ∗hayayah(1212)

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Although half these hormones can actually also be secreted from the duodenum, the duodenum is associated the most with CCK release.

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didelphus Gastrin, intrinsic factor, and pepsin are secreted by the stomach. VIP is synthesized in neurons, so CCK (from I cells of duodenum) would be most directly affected by a duodenectomy. +25

teepot123 fa 19 pg 365 +

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