Anatomy - Gastrointestinal Viscera Flashcards
Causes of GERD
- LES dysfunction (relaxation or weakness)
2. Hiatal hernia (reflux of stomach contents)
Herniation of stomach through the esophageal hiatus into the thoracic cavity
Hiatal/ Esophageal hernia
Treatment of Esophageal Hernia
- Management of GERD symptoms
2. Fundoplication
Parts of the Stomach (in sequence of location)
- Cardia
- Fundus
- Body
- Pylorus
Most common location of gastric ulcer
Pyloric Region of the stomach
Most common location of duodenal ulcer
First part of the duodenum
Widest part of the small intestine
Duodenum
Duodenum is retroperitoneal except…
First part
First part of the duodenum
Superior part
Second part of the duodenum
Descending part
Third part of the duodenum
Transverse part
Fourth part of the duodenum
Ascending part
Type of IBD usually occurring in the ileum
Crohn disease
Ducts draining in the major duodenal papilla
- Common Bile duct
2. Pancreatic duct
Mobile portion of the duodenum
First part of the duodenum
Type of IBD usually occurring in the colon and rectum
Ulcerative Colitis
Structure connecting the first part of the duodenum to the liver
Hepatoduodenal Ligament
A thin muscle connecting the junction between the duodenum, jejunum, and duodenojejunal flexure to connective tissue surrounding the superior mesenteric artery and coeliac artery
Suspensory Ligament of Treitz
Duodenal Cap
First part of the duodenum
Immune reaction to eating gluten, causing inflammation that damages the lining of the small intestine
Celiac disease
Longest part of the duodenum
Third part of the duodenum
Opening in D2 where common bile duct and pancreatic duct drains
Major duodenal papilla
Plicae Circularis (part of the small intestine)
Jejunum and Ileum
Anatomic landmark between the Upper and Lower GI
Suspensory Ligament of Treitz
Peyer’s Patches (part of the small intestine)
Ileum
Opening in D2 where accessory pancreatic duct drains
Minor duodenal papilla
Peritoneal fold between the ileum and cecum
Ileocecal Fold
State the Meckel’s Diverticulum Rule of 2’s
Occurs in 2% of the population Within 2 feet from the ileocecal valve 2x as common in males 2 inches long Presents in the first 2 decades of life More common in the first 2 years
Ileocecal Fold (eponym)
bloodless fold of Treves
Meckels Diverticulum represents the persistent portion of this embryonic yolk stalk
Vitelline or Omphalomesenteric Duct
Blood supply of the ascending and transverse colon
Superior Mesenteric Artery
Innervation of the descending and sigmoid colon
Pelvic splanchnic nerves
Colonic parts that are retroperitoneal
Ascending and Descending Colon
Blood supply of the descending and sigmoid colon
Inferior mesenteric artery
Colonic parts that are surrounded by peritoneum
Transverse and Sigmoid Colon
Common location of diverticulitis
Sigmoid Colon (kaya usually presents as left lower quadrant pain)
Innervation of the ascending and transverse colon
Vagus nerve
Twisting of the sigmoid colon around its mesentery
Sigmoid Volvulus
Absence of the enteric ganglia (cell bodies of the parasympathetic postganglionic fibers) leading to dilation of the colonic segment proximal to the lesion
Hirschsprung Disease/Megacolon
Blind end pouch of the large intestine
Cecum
Megacolon
Hirschsprung Disease
Treatment for Hirschsprung Disease
Colostomy
Suspension of the appendix to the terminal ileum
Messoapendix