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GI Alimentary Year 2 Medicine > Histology > Flashcards

Histology Flashcards

1
Q

Name the layers of the gut tube

A

Mucosa
Submucosa
Muscularis externa
Adventitia/ serosa

Histological picture of oesophagus
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2
Q

Name parts of mucosa

A

Epithelium
Lamina propria
Muscularis mucosae

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3
Q

Name the basic types of tissues

A

Epithelial
Connective
Muscle
Nervous

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4
Q

What type of epithelium is the oesophagus?

A

stratified squamous non-keratinised epithelium

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5
Q

What does the submucosa show in the oesophagus?

A

Mucous glands

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6
Q

What type of muscle is the upper 1/3 layer of the muscular layer in the oesophagus?

A

Skeletal

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7
Q

What type of muscle is the middle 1/3 layer of the muscular layer in the oesophagus?

A

Smooth and skeletal

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8
Q

What type of muscle is the lower 1/3 layer of the muscular layer in the oesophagus?

A

Smooth

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9
Q

What type of epithelium lines the stomach?

A

simple columnar epithelium

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10
Q

What does the epithelium look like in the stomach?

A

Pale

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11
Q

What colour do parietal cells stain?

A

Pink

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12
Q

What glands are found in the muscosa of the stomach?

A

Gastric glands

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13
Q

What cells are found at the base of the gland of the stomach?

A

Chief cells

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14
Q

What is found in the mucosa of the small intestine?

A

Peyer’s patches

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15
Q

What are Peyer’s patches?

A

Lymphoid aggregations in mucosa

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16
Q

What unique feature does the small intestines have?

A

Villi

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17
Q

What crypts are found in the small intestine?

A

Crypts of Leiberkuhn

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18
Q

What glands are found in the submucosa of the duodenum?

A

Brunner’s glands

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19
Q

What does the mucosa look like in the large intestine?

A

Thick

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20
Q

What glands are found in the GI system?

A

Salivary glands
Pancreas
Liver

21
Q

What do secretory glands look like?

A

Roundish structure with columnar cells and nuclei at the base

22
Q

What is found in the histology of the pancreas?

A

Islets of largerhans
Pancreatic acini
Pancreatic ducts

23
Q

What fibres are found in the connective tissue of mucosa

A

Elastin fibres

24
Q

What histological feautre is unique to the oesophagus and stomach

A

Location of mucus glands in submucosa

25
Q

Where are more mucous glands found in the oesophagus?

A

Upper and lower thirds

26
Q

What plexus is found in the muscularis propria of the oesophagus?

A

Auerbachs plexus

27
Q

Is adventitia or serosa found in the oesophagus?

A

Both
Majority is adventitia

28
Q

Name the histological regions of the stomach

A

Cardia
Fundus
Pylorus

29
Q

Is serosa or adventitia found in the stomach?

A

Serosa

30
Q

What is found is the mucosa of the cardia?

A

Cardiac glands
Gastric pits

31
Q

Why is the muscularis propria unique in the stomach?

A

Contain 3 layers of smooth muscles

32
Q

What is found in the serosa of the cardia?

A

Loose connective tissue
Blood vessels
Adipose tissue
Nerves
Lympathic

33
Q

What are the rugae formed from?

A

Mucosa and submucosa

34
Q

What cells are present in the mucosa of the fundus?

A

Parietal
Mucous
Chief

35
Q

What is unique to the pylorus?

A

Promintant gastirc pits

36
Q

What do the pyloric glands look like?

A

Shorter
More branches
More coils

37
Q

Is there serosa or adventitia in the small intestine?

A

Serosa

38
Q

Compare the villi in the duodenum and ileum

A

Tall and slender in duodenum
Shorter and broader in ileum

39
Q

Which part of the small intestines contains peyers patches?

A

Ileum

40
Q

What are lacteals?

A

specialized lymph capillaries present in ileum
White spaces

41
Q

what do bruners glands look like?

A

Coiled tubular glands
Pass though muscularis mucosa

42
Q

What colour are goblets cells seen as?

A

Dark purple

43
Q

Where do crypts of lieberkuhn extend though in the large intestine?

A

Majority of mucosa

44
Q

What is the liver surrounded by?

A

Glisson’s capsule

45
Q

What are hepatocyes separated by?

A

Sinusoids

46
Q

What is the liver organised into?

A

Hepatic lobules

47
Q

What are the main functional cells of the pancreas?

A

Parenchyma

48
Q

How can we identify islets of Langerhans cells?

A

Lighter stain and smaller cells

GI Alimentary Year 2 Medicine (7 decks)

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