SFP: fuck them kids Flashcards by Paige Beans

Q

what are the boundaries of the foregut

A

primordial pharynx to proximal aspect of bile duct opening

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Q

what are the boundaries of the midgut

A

end of proximal aspect of bile duct opening to first 2/3 of transverse colon

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Q

what are the boundaries of the hind gut

A

distal 1/3 of transverse colon and superior part of anal canal

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Q

what is recanalization

A

the re-opening to form a lumen in both the esophagus and duodenum

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Q

how does the esophagus elongate

A

proliferation

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Q

what results from esophageal stenosis/atresia

A

decreased amniotic fluid absorption and resulting polyhydraminos

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Q

what is heterotopic gastric mucosa

A

an ectopic epithelium that results in acid secretions tht irritate the esophageal mucosa

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Q

the stomach is derived from

A

endoderm

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Q

the stomach is suspended within the…

A

dorsal mesentary

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Q

the stomach is suspended by the

A

dorsal mesogastrium

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Q

what is the positioning of the left side of the stomach and left vagus nerve

A

anterior

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Q

what is the positioning of the right side of the stomach and right vagus nerve

A

posterior

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Q

what develops from the dorsal mesogastrium

A

dorsal bud of pancreas, spleen, greater omentum

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Q

what develops from the ventral mesogastrium

A

liver diverticulum/liver, gallbladder, bile ducts, ventral bud of pancreas

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Q

where does the ventral mesogastrium disappear

A

inferior to liver (mid and hindgut regions)

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Q

what forms the spleen

A

mesenchyme condensations within the dorsal mesogastrium

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Q

what causes the spleen’s location

A

rotation of the stomach

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Q

what is congenital hypertrophic pyloric stenosis

A

thickened muscle of the pyloris obstructs passage of food, causes projectile vomiting

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Q

the dudenum originates from both…

A

foregut and midgut

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Q

what is derived from hepatic diverticulum

Study These Flashcards

A

liver, gallbladder, bile ducts, ventral pancreatic bud

Q

when does bile formation start

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A

week 12

Q

which direction does the dupdenum rotate

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A

to the right

Q

what causes recanalization

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A

widening of the canal

Q

what is duodenal atresia

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A

lack of recanalization of the lumen

what results in a double bubble on ultrasound

dupdenal atresia

what does vascular occlusion cause

atresia of jejunum, ileum, and colon; doesnt cause recanalization issues

what causes physiological midgut herniation

rapid growth of intestine that expends out into the umbilicus

the midgut rotates

270 degrees counterclockwise

what is a subhepatic cecum

an incomplete (180 degree) rotation of the cecum

what is meckels diverticulum

persistent midgut yolk sac (vitelline duct remnant) connection to umbilicus

what marks the location of the appendix

merging of the tenia coli bands

what is fixation of intestines

mesentery fuses with the body wall or other mesentery to secure the intestines

what is gastroschisis

failure of body wall to fuse in the abdominal region during folding

what is a midgut volvulus

part of the intestine twists on itself in the abdominal cavity

what is hirschprungs disease

absence of peristalsis in the aganglionic region of the colon prevents movement of intestinal contents; big ol colon. always involves the distal end

what comprises the cloaca

endoderm

the cloacal membrane is comprised of

endoderm and ectoderm

what is the urorectal septum

mesenchyme separating the urachus and urogenital sinus from the hindgut structures (rectum and anal canal)

what is a rectoperineal fistula

there is an external opening but not through the anal canal

what is a rectovestibular fistula

opens into vaginal vestibule

what is a rectovaginal fistula

opens into vagina canal

what is a rectourethral fistula

opens into urethra

what is a rectalvesical fistual

opens into bladder

what is anal atresia

abnormal anal canal

what ligaments are derived from ventral mesentary

hepatodupdenal and hepatogastric

what helps form a single pancreas

stomach rotation brings ventral and dorsal pancreatic buds together

what causes annular pancreas

abnormal rotation of vental bud or ventral bud rotation in opposite direction

what might annular pancreas cause

duodenal atresia or stenosis