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Block 4 — GI

HoyaDocs · GI Block

GI Lecture Guides.

These materials are designed to supplement your learning — whether that's in-house lectures, BnB, Pathoma, Physeo, Sketchy, the BK Anki deck, ANKing, or anything else you use. Whatever your primary sources, this is your one-stop shop to test and consolidate that learning.

For 3rd party resource mapping (BnB, Bootcamp, Pathoma, Physeo, Sketchy) by lecture, see the GI Mapping resource. For UWorld QIDs and Anki deck tags by lecture, see the GI Resource Hub.

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🩺 Clinical Reasoning (DRT)
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Lecture 36 Liver Enzymes AST, ALT, ALP, GGT, bilirubin — hepatocellular vs cholestatic patterns, LFT interpretation, clinical reasoning
📖 Guide 📝 MCQs ✏️ Recall Drill
🔬 Histology & Embryology
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Lecture 04 Histology: Esophagus, Stomach & Intestines Four-layer wall structure, region-specific cell types, goblet cells, Peyer's patches, and high-yield histological distinctions
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Lecture 07 GI Primer — Endoderm & Gut Tube Development Endoderm derivatives, gut tube formation, foregut/midgut/hindgut territories, rotation & fixation, congenital anomalies
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Lecture 12 GI Embryology Gut rotation & fixation errors, atresias, duplications, omphalocele, gastroschisis, Hirschsprung disease, anorectal malformations
Lecture 33 Histology: Liver & Biliary Tract Hepatic lobule architecture, hepatocytes, sinusoids, space of Disse, portal triad, bile duct & gallbladder histology
🪱 Microbiology
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Lecture 25 GI Infections Bacterial, viral & fungal GI infections — C. difficile, Salmonella, Shigella, E. coli, Campylobacter, food-borne illness
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Lecture 26 Parasitology GI parasites — Giardia, Entamoeba, Cryptosporidium, helminths, protozoa, stool O&P, and treatment
🦠 Pathology & Disease
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Lecture 15 Esophagus & Stomach Disease GERD, Barrett esophagus, esophageal cancer, peptic ulcer disease, H. pylori, gastritis types, upper GI bleed
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Lectures 19–20 Intestinal Pathology I & II IBD (Crohn vs UC), celiac disease, malabsorption, ischemic bowel, diverticular disease, polyps, and colorectal carcinoma
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Lecture 22 GI Pathology Lab Gross & microscopic pathology of GI specimens — biopsies, polyps, inflammatory conditions, neoplasia, and histological diagnosis
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Lecture 28 Intestinal Pathology Case Review Case-based review of intestinal pathology — IBD, celiac, polyps, colorectal cancer, differential diagnosis
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Lectures 34–35 Liver Disease I & II Hepatitis, cirrhosis, alcoholic & fatty liver disease, hepatocellular carcinoma, Wilson, hemochromatosis, autoimmune
📖 Guide 📝 MCQs ✏️ Recall Drill
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Lecture 38 Pancreas Disease Acute & chronic pancreatitis, pancreatic cancer, exocrine insufficiency, cystic fibrosis, pseudocysts
📖 Guide 📝 MCQs ✏️ Recall Drill
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Lecture 39 Liver & Pancreas Lab Gross & microscopic pathology of liver and pancreas specimens — cirrhosis, hepatitis, pancreatitis, neoplasia
📖 Guide 📝 MCQs ✏️ Recall Drill
💊 Pharmacology
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Lecture 21 Poisoning Conference & Cases GI-relevant toxicology, case-based presentations, antidotes, decontamination strategies, and pharmacological management
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Lectures 23–24 GI Pharmacology Treatment of peptic ulcer & GERD — PPIs, H₂ blockers, antacids, prokinetics, laxatives, antidiarrheals
🍽️ Physiology & Function
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Lecture 01 GI Overview & Physiology Introduction GI anatomy, fluid balance, ENS, receptors & neurotransmitters, blood supply & autonomics
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Lecture 02 GI Motility Peristalsis, segmentation, sphincters, slow-wave potentials, and motility disorders
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Lectures 05–06 Bile Workshop & Making a Micelle Bile acid synthesis & recycling, micelle formation, fat digestion, enterohepatic circulation, cholestasis
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Lectures 09–10 GI Secretions I & II Salivary, gastric, pancreatic, and intestinal secretions — regulation, cell types, and clinical correlates
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Lectures 16–17 Digestion & Absorption I & II Macronutrient digestion, transporters, vitamin & mineral absorption, malabsorption syndromes
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Lecture 14 Overview of the Liver Hepatic anatomy & blood flow, metabolic functions, bilirubin metabolism, jaundice types, LFTs, and cirrhosis overview
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Lecture 40 PSW: Cholera Secretory vs osmotic diarrhea, fluid & electrolyte transport, cholera toxin mechanism
📖 Guide 📝 MCQs ✏️ Recall Drill
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Lecture 40 PSW: Lactose Intolerance Secretory vs osmotic diarrhea, fluid & electrolyte transport, lactase deficiency
📖 Guide 📝 MCQs ✏️ Recall Drill
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Lecture 46 Chronic Hepatitis C & Hepatocellular Carcinoma Chronic & chronic hepatitis, hepatocellular carcinoma, cirrhosis, transplant
📖 Guide 📝 MCQs ✏️ Recall Drill
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Lecture 47 Chronic Pancreatitis Chronic & chronic pancreatitis, exocrine insufficiency, cystic fibrosis, pseudocysts
📖 Guide 📝 MCQs ✏️ Recall Drill
🏗️ Anatomy
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Lecture 03 Anterior Abdominal Wall & Hernias Layered anatomy, inguinal canal, hernia types (direct, indirect, femoral), and surgical landmarks
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Lecture 08 Abdominal Viscera I: GI Tract Stomach, small bowel, large bowel — gross anatomy, blood supply, peritoneal relationships, and clinical correlates
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Lecture 13 Abdominal Viscera II Liver, gallbladder, biliary tree, pancreas, and spleen — anatomy, relations, porta hepatis, clinical applications
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Lecture 29 Retroperitoneum Posterior abdominal wall, retroperitoneal organs, kidneys, ureters, aorta, IVC, adrenals, and lymphatic drainage
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