# 11 GI Hormones

## Gastrin

![](https://f001.backblazeb2.com/file/wikiFiles/14898208-BFCD-4561-A070-076DB7E7AA29.jpg)

* secreted by stomach but travels through blood

![](https://f001.backblazeb2.com/file/wikiFiles/7666EA01-F982-4B1E-BC34-50975DE14F1C.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/7019B210-9D6D-48FE-8695-CA432502AA1E.jpg)

* increase motility: gets stomach ready for digestion

![](https://f001.backblazeb2.com/file/wikiFiles/A6985F47-E788-4408-AD87-8CEF9E64228C.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/85E41236-3455-4250-8764-A83F652C04FC.jpg)

* gets food going
* distended stomach from food in stomach&#x20;
* ph rise from food

![](https://f001.backblazeb2.com/file/wikiFiles/0228BBD8-A465-4A3E-93BF-5D2655FC9AF9.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/A1EDAECE-D8E4-4A37-A4AB-D902BFC1735A.jpg)

* abdominal pain from excessive acid
* distal duodenum, beyond normal ulcer location

![](https://f001.backblazeb2.com/file/wikiFiles/B2AFAD62-D024-4AB6-B24F-301A82472A8B.jpg)

* fasting important: food stimulates gastrin release
* no food, no gastrin release

![](https://f001.backblazeb2.com/file/wikiFiles/738F8631-950E-4159-BB55-E3FA675394BF.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/355D54F4-02E4-4B7D-9150-7D5A407E6BF9.jpg)

* gastrin stimulate parietal cells that are destroyed
* gastrin keeps rising and rising

## CCK

![](https://f001.backblazeb2.com/file/wikiFiles/6BDA41A2-9C23-4A9B-88C5-0A8AAA99F17F.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/8CA3098B-5721-400F-AE48-88EFE3B579CC.jpg)

* delay gastric emptying to allow time for bile secretion

![](https://f001.backblazeb2.com/file/wikiFiles/2BE2E978-96B2-470E-AEA9-699EA34E5A42.jpg)

* triglycerides not stimulus

![](https://f001.backblazeb2.com/file/wikiFiles/A65AAD89-51CB-457A-89F8-71E75C98E49E.jpg)

* taking picture of gall bladder, alternate to US

## Secretin

![](https://f001.backblazeb2.com/file/wikiFiles/EAC7584C-477B-4AAA-8477-B477FA71A171.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/7E60DEA7-729E-4F0B-9B36-CD4597EED74B.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/5F9F7617-5191-49B6-AB20-D0362FDFA500.jpg)

## Somatostatin

![](https://f001.backblazeb2.com/file/wikiFiles/6B3FECAE-8EB1-4BAC-8273-AD6551472054.jpg)

* nerves throughout body: inhibit many other things throughout body

![](https://f001.backblazeb2.com/file/wikiFiles/9CAC8D0F-89D5-46C6-9C42-682C88BB89CF.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/A3D65717-3925-490C-9BBB-4025F178490C.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/A691FA80-72A3-494E-86F9-B84EB8C59197.jpg)

## GIP

![](https://f001.backblazeb2.com/file/wikiFiles/A02C0A50-C036-42B3-9EBC-3985F5690209.jpg)

* I for insulin. Ij**k** for k cell

## VIP

![](https://f001.backblazeb2.com/file/wikiFiles/CD5E9203-A923-4C24-92A3-6EAE69C2B3D7.jpg)

* VIP tumors loss acid production in stomach

![](https://f001.backblazeb2.com/file/wikiFiles/4D90697C-AA6A-48E5-8230-274BA2DED758.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/E424E3BE-51DD-4D64-BA67-B16ED67106A4.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/30805A5E-F3A8-4438-BD47-FFA3203EB1B4.jpg)

## Motilin

![](https://f001.backblazeb2.com/file/wikiFiles/37887B5D-85EE-4345-94CC-167EA69C9520.jpg)

* keep things moving in GI tract when not eating

![](https://f001.backblazeb2.com/file/wikiFiles/7F75596F-D45D-4C6C-8E75-F202D9C51BC4.jpg)

## Digestion

![](https://f001.backblazeb2.com/file/wikiFiles/165C6E54-F3C3-4421-88ED-0C80116B2139.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/C1F359F8-A892-4C0E-965E-520C87562D5A.jpg)

![](https://f001.backblazeb2.com/file/wikiFiles/361DE9F0-20DC-49C9-AF08-EE85EE00EB01.jpg)
