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GI pathophysiology Review section. Bios E-162b, Dec 5, 2010. Overview of the GI system. http://en.wikipedia.org/wiki/File:Digestive_system_diagram_edit.svg. Transit of foodstuffs through the GI system. http://www.youtube.com/watch?v=Z7xKYNz9AS0. The wall of the GI tract has several layers.

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Gi pathophysiology review section

GI pathophysiology

Review section

Bios E-162b, Dec 5, 2010


Gi pathophysiology review section

Overview of the GI system

http://en.wikipedia.org/wiki/File:Digestive_system_diagram_edit.svg


Gi pathophysiology review section

Transit of foodstuffs through the GI system

http://www.youtube.com/watch?v=Z7xKYNz9AS0




Gi pathophysiology review section

Bile and pancreatic secretions are emptied at the same point in the duodenum

www.memorialhermann.org


Gi pathophysiology review section

The enteric nervous system regulates GI activity in the duodenum

mikedaisey.com


Gi pathophysiology review section

GI hormones also regulate GI activity in the duodenum

04340.com


Gi pathophysiology review section

Gastroesophageal in the duodenum reflux is due to an insufficient closure of the lower esophageal sphincter

www.webmd.com


Gi pathophysiology review section

Hiatus hernias may also cause in the duodenumgastroesophageal reflux

myhealth.ucsd.edu


Gi pathophysiology review section

Several factors may cause or aggravate GER in the duodenum

  • Young age

  • Obesity

  • Pregnancy

  • Postural changes after eating

  • - Smoking

  • - Peppermint, coffee, alcohol

  • - Diseases of connective tissue


Gi pathophysiology review section

GER may lead to Barrett’s esophagus in the duodenum

Gastric metaplasia of the esophageal epithelium

www.lwjuan.com


Gi pathophysiology review section

Barrett’s esophagus mat lead to esophageal in the duodenumadenocarcinoma

upload.wikimedia.org





Gi pathophysiology review section

H. + HCO3Pilori is the most common cause

bioweb.uwlax.edu


Gi pathophysiology review section

H. + HCO3Pilori is the most common cause

upload.wikimedia.org


Gi pathophysiology review section

The digestion of carbohydrates + HCO3

Most dietary carbs are polysaccharides

Cooper GM. The Cell: A Molecular Approach. 2nd edition.


Gi pathophysiology review section

The digestion of carbohydrates + HCO3

Allcarbohydrates are convertedtomonosaccharidesbeforeabsorption

salivary a-amilase

5% starch

Maltose

salivary a-amilase

25% starch

Maltose

pancreatica-amilase

70%starch

Maltose


Gi pathophysiology review section

The digestion of carbohydrates + HCO3

Disaccharidases at intestinal villitransformdisaccharides in monosaccharides


Gi pathophysiology review section

The digestion of fats + HCO3

web.campbell.edu


Gi pathophysiology review section

Types of diarrhea + HCO3

Osmotic

ie. Lactose intolerance

Secretory

ie. Cholera

Malabsoptive

ie. Celiac disease

Inflammatory

ie. Chron’s disease

High motility

ie. Some medications