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Karch’s Focus on Nursing Pharmacology, 9th Ed., Tucker
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Chapter 56: Introduction to the Gastrointestinal System

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Karch’s Focus on Nursing Pharmacology, 9th Ed., Tucker | Registered Nurse (RN) School Study Aid

Chapter 56: Introduction to the Gastrointestinal System
4 Picmonics to Learn | 8 mins
GI Absorption
Stomach
Alcohol
Duodenum
Iron
Jejunum
Folate
Terminal Ileum
Vitamin B12
Bile Resorption
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1 min
Pancreas
Characteristics
Acinar Cells Release Digestive Enzymes
Ductal Epithelial Cells Release Bicarbonate
Islets of Langerhans
Beta Cells Release Insulin
Alpha Cells Release Glucagon
Delta Cells Release Somatostatin
Somatostatin Inhibits Alpha and Beta Cells
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3 mins
Small Intestine Digestion
Brush border enzymes
Pancreatic Enzymes are secreted via a Duct
Pancreas secretes bicarbonate
Brush Border activates Pancreatic Trypsin
Trypsin activates Chymotrypsin
Trypsin and Chymotrypsin digest Proteins
Gallbladder Releases Bile
Pancreatic Lipase breaks down Lipids
Goblet cells secrete mucus
Pancreatic Amylase breaks down Carbohydrates
Pancreatic Nucleases breakdown DNA/RNA
Digestion occurs in the Duodenum
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2 mins
Foregut Structures, Blood Supply and Innervation
Structures
Esophagus
Lower Respiratory Tract
Stomach
Proximal Duodenum
Liver
Gallbladder
Pancreas
Spleen
Vascular Supply
Celiac Artery
Innervation
Vagus Nerve
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2 mins

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