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gastrointestinal > GI anatomy > Flashcards

GI anatomy Flashcards

1
Q

foregut location

A

from stomach to 1/2 way along duodenum

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2
Q

midgut location

A

distal 1/2 duodenum to proximal 2/3 transverse colon

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3
Q

hindgut location

A

distal 1/3 transverse colon to rectum

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4
Q

arteries to foregut midgut and hindgut

A

foregut=coeliac trunk
midgut=SMA
hindgut=IMA

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5
Q

veins to the fore, mid and hindgut

A

foregut= tributaries of the portal vein
midgut=SMV
hindgut=IMV

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6
Q

sympathetic nerve supply to fore, mid and hindgut

A

foregut=dominant greater splanchnic nerve (t6-t9)
midgut=dominant: lesser and least splanchnic (t10-t12)
hindgut=lumbar splanchnic (l1-2)

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7
Q

parasympathetic nerve supply to foregut, midgut and hindgut

A

foregut=vagus
midgut=vagus
hindgut=pevic splachnic nerve (s2-s4)

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8
Q

coeliac trunk divisions
superior divisions
inferior divisions

A 
coeliac 
left gastric artery
common hepatic artery (gastroduodenal a.)
splenic artery  (omental a.)
superior
middle colic
right colic
inferior pancreaticduodenal
ileocaecal 
ileum and jejunum 
Inferior
sigmoidal
superior rectal
left colic
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9
Q

4 differences between ileum and jejunum

A
  1. jejunum has plicae so feels fuller
    2.jejunum longer vasa recta so looks less vascularised
    3.jejunum less fat
  2. jejunum upper
    ileum lower
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10
Q

features of the colon

A

taeniae coli
omental appendices
haustra
colic flexures

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11
Q

histology feature of protective epithelium

A

stratified squamous

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12
Q

histology feature of secretory epithelium

A

long tubular glands

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13
Q

histology feature of absorptive epithelium

A

mucosa arranged into villi with short glands

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14
Q

histology feature of absorptive/ protective epithelium

A

closely packed straight tubular glands

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15
Q

outer to inner histology of gut tube

A 
adventitia
outer longitudinal MP
auberach's plexus
inner circular MP
submucosa (meissner's plexus
mucosa: 
muscularis externa
lamina propria
epithelium
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16
Q

outer to inner anterior abdominal wall

A 
skin
camper's fascia
scarper's fascia
external oblique
internal oblique
transverse abdominis
transverse fascialis

gastrointestinal (26 decks)

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