Small Intestine Flashcards
What comprises the small bowel
Duodenum
Jejunum
Ileum
Mechanical obstruction to the passage of intraluminal contents
Small bowel obstruction (SMO)
What marks the end of the duodenum and the start of the jejunum
Ligament of Treitz
What are the ABCs of SBO
Adhesions
Bulge (hernia)
Cancer and tumors
What is the most common indication for abdominal surgery in patients with Crohn’s disease
SBO due to strictures
After a small bowel resection, why should the mesenteric defect always be closed
To prevent an internal hernia
What may cause SBO if patients is on Coumadin
Bowel wall hematoma
What is the number one cause of SBO
hernias
What conditions commonly mimics SBO
Paralytic ileus
What is the most common malignant small bowel tumor
Adenocarcinoma
Remnant of omphalomesenteric duct which connects the yolk sac with the primitive midgut in the embryo
Meckel’s Diverticulum
What is the usual location for Meckel’s diverticulum
Within 2 feet of the ileocecal valve`
What is the most common complication of Meckel’s diverticulum in adults
Intestinal obstruction
What is the Rule of 2s
2% of patients are symptomatic
Found 2 feet from the ileocecal valve
Found in 2% of the population
What vessel provides blood supply to the appendix
Appendiceal artery - branch of the ileocolic artery
How can the appendix be located if the cecum has been identified
Follow the teniae coli down to the appendix
Point one third from the anterior superior iliac spine to the umbilicus
McBurney’s Point
