Hindgut development — Flashcards

Flashcard 1: The _____ line is formed where anal endoderm (hindgut) meets ectoderm

Answer: pectinate (dentate)

Flashcard 2: What is the embryonic origin of the myenteric (Auerbach) plexus? _____

Answer: Neural crest

Flashcard 3: Jejunal and ileal atresia occur due to disruption of _____ vessels during development, which causes ischemic necrosis and segmental resorption

Answer: mesenteric

Flashcard 4: What is the embryonic gut region of the blood supply to the spleen (e.g. foregut, midgut, hindgut)? _____

Answer: Foregut (celiac trunk gives rise to the splenic artery)

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/gastroenterology/videos/visceral-anatomy?index=2] https://onlinemeded.org/spa/surgery-general/pancreas/acquire?ref=anki 

Flashcard 5: During the 10th week of gestation, the midgut returns to the abdominal cavity and rotates 270° counterclockwise around the _____ artery

Answer: superior mesenteric

Extra:   https://onlinemeded.org?ref=anki 

Flashcard 6: Which embryological structure develops into the GI tract from the distal duodenum to the proximal 2/3 of the transverse colon? _____

Answer: Midgut

Flashcard 7: What is the embryonic gut region of the blood supply to the spleen (e.g. foregut, midgut, hindgut)? _____

Answer: Foregut (celiac trunk gives rise to the splenic artery)

Flashcard 8: Meckel's diverticulum

Answer: failure of vitelline duct to close

Extra: in newborn: melena, periumbilical pain, ulcer

Flashcard 9: gut tube epithelium

Answer: endoderm

Flashcard 10: liver

Answer: endoderm