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Alimentary system > Alimentary histology > Flashcards

Alimentary histology Flashcards

1
Q

Tissues consist of?

A

Cells + extracellular matrix

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2
Q

Tissues consist of?

A

Cells + extracellular matrix

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3
Q

Four basic tissue types?

A

Epithelium
Connective
Muscle
Nervous

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4
Q

Main constituent of connective tissue?

A

Extracellular matrix

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5
Q

An organ consists of?

A

Two or more types of tissues

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6
Q

Lamina propria is what type of tissue?

A

Connective

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7
Q

Four layers of the gut tube?

A

Mucosa
Submucosa
Muscularis externa
Serosa/adventitia

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8
Q

Serosa and adventitia are distinguished by?

A

Whether peritoneum covers their surface or not

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9
Q

Three layers of the mucosa?

A

Epithelium
Lamina propria
Muscularis mucosae

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10
Q

Layers of muscularis externa?

A

Circular
Longitudinal
Oblique (stomach only)

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11
Q

Function of muscularis mucosae?

A

Squeeze secretions from epithelial glands into the lumen

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12
Q

Functions of lamina propria?

A

Support epithelial cells

Allow passage of blood vessels and nerves to the epithelial cells

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13
Q

Majority of GI glands are what type?

A

Exocrine

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14
Q

Two structures in GI tract with submucosal glands?

A

Oesophagus

Duodenum

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15
Q

Epithelium in oesophagus?

A

Stratified squamous keratinised epithelium

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16
Q

Submucosal glands in oesophagus?

A

Mucus secreting glands

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17
Q

Function of oesophageal submucosal glands?

A

Secrete mucus to lubricate passage of food to the stomach

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18
Q

Function of muscularis externa in the stomach?

A

Churn and mechanically digest food

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19
Q

Cells present at the base of gastric glands?

A

Chief cells

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20
Q

Cells present halfway down gastric glands?

A

Parietal cells

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21
Q

Lymphoid aggregations in mucosa of small intestine?

A

Peyer’s patches

22
Q

Brunner’s glands secrete?

A

Bicarbonate ions

23
Q

Secreted by Brunner’s glands?

A

Bicarbonate ions

24
Q

Four basic tissue types?

A

Epithelium
Connective
Muscle
Nervous

25
Main constituent of connective tissue?
Extracellular matrix
26
An organ consists of?
Two or more types of tissues
27
Lamina propria is what type of tissue?
Connective
28
Four layers of the gut tube?
Mucosa Submucosa Muscularis externa Serosa/adventitia
29
Serosa and adventitia are distinguished by?
Whether peritoneum covers their surface or not
30
Three layers of the mucosa?
Epithelium Lamina propria Muscularis mucosae
31
Layers of muscularis externa?
Circular Longitudinal Oblique (stomach only)
32
Function of muscularis mucosae?
Squeeze secretions from epithelial glands into the lumen
33
Functions of lamina propria?
Support epithelial cells | Allow passage of blood vessels and nerves to the epithelial cells
34
Majority of GI glands are what type?
Exocrine
35
Two structures in GI tract with submucosal glands?
Oesophagus | Duodenum
36
Epithelium in oesophagus?
Stratified squamous keratinised epithelium
37
Submucosal glands in oesophagus?
Mucus secreting glands
38
Function of oesophageal submucosal glands?
Secrete mucus to lubricate passage of food to the stomach
39
Function of muscularis externa in the stomach?
Churn and mechanically digest food
40
Cells present at the base of gastric glands?
Chief cells
41
Cells present halfway down gastric glands?
Parietal cells
42
Lymphoid aggregations in mucosa of small intestine?
Peyer's patches
43
Submucosal glands in duodenum?
Brunner's glands
44
Secreted by Brunner's glands?
Bicarbonate ions
45
Part of small intestine with most Peyer's patches?
Ileum
46
Cells prevalent in the epithelium of the large intestine?
Goblet cells
47
Main glands of GI tract?
``` Salivary glands Gastric glands Brunner's glands Pancreas Liver ```
48
Endocrine portions of pancreas visible in histology?
Islets of Langerhans
49
Cells forming exocrine portions of pancreas?
Acinar cells
50
Duct cells in the pancreas secrete?
Bicarbonate
51
Structures forming portal triad?
Hepatic artery Hepatic portal vein Bile duct

Alimentary system (4 decks)

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