Gastrointestinal Flashcards

1
Q

epithelium features in esophagus

A

nonkeratinised stratified squamous epithelium

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2
Q

histological features in stomach

A

gastric glands

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3
Q

histological features in duodenum

A
  • villi and microvilli
  • brunner glands
  • crypts of leiberkuhn
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4
Q

histological features in jejunum

A
  • plicae circulaires (also present in distal duodenum)
  • crypts of leiberkuhn
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5
Q

histological features in ilium

A
  • Peyer patches
  • plicae circulaires
  • crypts of leiberkuhn
  • largest number of goblet cells in large intestine
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6
Q

histological features in colon

A
  • crypts of leiberkuhn
  • no villi
  • abundant goblet cells
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7
Q

what are Brunner glands

A

HCO3- secreting cells of submucosa

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8
Q

what do crypts of leiberkuhn contain

A

contain stem cells that replace enterocytes/goblet cells

and paneth cells that secrete defensins, lysozymes and TNF

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9
Q

what are Peyer patches

A

lymphoid aggregates in lamina propria, submucosa

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10
Q

what are goblet cells

A

synthesise and secrete mucous

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11
Q

what are plicae circulaires

A

numerous folds of mucous membrane which contain villi and microvilli

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12
Q

what is this

A

esophagus

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13
Q

what is this

A

esophagus

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14
Q

what is this

A

esophagus

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15
Q

what is this. and label the blanks

A

gastro-esophageal junction

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16
Q

what is this

A

stomach

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17
Q

what is this. and label the blanks

A

stomach

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18
Q

what is this. and label

A

stomach

19
Q

what is this. and label

A

stomach

20
Q

what is this. and label

A

small intestine

21
Q

what is this

A

duodenum

22
Q

what is this

A

duodenum

23
Q

what is this. and label

A

duodenum

24
Q

what is this

A

jejunum

25
Q

what is this

A

jejunum

26
Q

what is this

A

ileum

27
Q

what is this. and label

A

ileum

28
Q

what is this

A

colon

29
Q

what is this

A

colon

30
Q

what is this

A

colon

31
Q

what is this

A

colon

32
Q

what is this

A

colon

33
Q

what is this

A

colon

34
Q

what is this

A

colon

35
Q

what is this. and label

A

anorectal junction (simple columnar to stratified squamous)

36
Q

what is this

A

liver

37
Q

what is this

A

liver

38
Q

what is this

A

liver

39
Q

what is this

A

liver

40
Q

what is this

A

pancreas

41
Q

what is this. and label

A

pancreas. islet of langerhans is labeled

42
Q

what is this. and label

A

pancreas

43
Q

what is this

A

spleen