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09 · SMB2 · Cellule, tissus & développement · 09E.08 · Développement du système digestif · all pages
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09E.08 · Développement du système digestif

Digestive system development

Mécanisme du développement · 90 pages

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Digestive System Development
1Digestive System Development
Embryonic Folding
2Week 4: Folding & Somitogenesis3Yolk Sac Incorporation4Primitive Gut Regions5Stomodeum, Gut, Proctodeum6Primitive Gut Tube (week 4)
Primitive Gut & Mesenteries
7Endoderm & Dorsal Mesentery8Coelom Formation9Coelom → 3 Body Cavities10Dorsal Mesentery & Retroperitoneum11Celiac, SMA, IMA Arteries12Foregut/Midgut/Hindgut Derivatives13Mesogastria & Ligaments (week 5)
Stomach Development
14Stomach Rotation & Omentum15Mesogastrium → Peritoneal Ligaments16Lesser & Greater Omentum Formation17Greater Omentum Anatomy18Omentum Fusion (weeks 9–20)19Colon Retroperitoneal Fixation
Peritoneum
20Intra- vs. Retroperitoneal Organs21Peritoneum Definition22Small Bowel Mesenteries
Midgut Rotation
23270° Rotation Overview24Physiological Umbilical Hernia25Loop Rotation (week 7)26Small Intestine Growth (week 8)27Cecum Positioning (3rd month)28Final Gut Position (3rd month)29Vitelline Duct Persistence (Malformation)30Final Intestinal Arrangement31Herniation & Reinternalization (weeks 6–10)32Omphalocele (Malformation)33Vascular Accidents (Malformation)34Malrotation Types (Malformation)35Conjoined Twins (Malformation)
Intestinal Histodifferentiation
36Lumen Obliteration & Recanalization37Atresia, Stenosis, Duplication (Malformation)38Atresia Incidence (Malformation)39Lumen Duplications (Malformation)40Duplication Sites (Malformation)
Gut Regionalization
41SHH & Hox Gene Patterning42Mesenchyme-Epithelium Interaction43Mesenchyme Directs Epithelium44Hox Gene Map & Pdx145Liver, Pancreas, Hindgut Signals
Intestinal Cell Differentiation
46Crypt-Villus Renewal47Intestinal Cell Types48Intestinal Wall Layers49Differentiation Timeline (weeks 6–38)50Gut Wall Germ Layer Origins
Hirschsprung Disease
51Congenital Megacolon (Case)52Hirschsprung: Megacolon53Absent Myenteric Ganglia54Neural Crest → Enteric Plexus
Intestinal Maturation & Microbiota
55Functional Maturation56Microbiota Definition57Colonization at Birth58Social Sharing of Microbiota59Fecal-Oral Transmission60Bacteria vs. Human Cell Numbers61Gut Defense Maturation
Liver & Pancreas Development
62Accessory Gland Origins63Liver & Pancreas Molecular Signals64Cephalic Folding & Foregut65Endodermal Buds (week 4)66Liver Bud Growth (weeks 4–5)67Pancreatic Bud Fusion (week 7)68Pancreatic Buds & Rotation69Pancreas & Duodenum Fixation70Pancreatic Branching & First Endocrine Cells71Endocrine vs. Exocrine Specification72Mature Pancreas Proportions73Pancreatic Heterotopia (Malformation)74Pancreatic & Gastric Heterotopia Sites75Annular Pancreas (Malformation)76Annular Pancreas Mechanism
Gut Extremities
77Stomodeum & Proctodeum78Embryogenesis Overview (weeks 3.5–8)79Oral Cavity & Neural Crest80Pharyngeal Arch Structure81Facial Swellings & Stomodeum82Facial Clefts (Malformation)83Cloaca & Urorectal Septum84Cloacal Separation Stages85Anorectal Canal (Newborn)86Imperforate Anus (Malformation)87Uro-Digestive Fistulas (Malformation)
Summary & Timeline
88Weeks 3–6 Timeline89Weeks 7–12 Timeline90Closing Slide