Histology of the GI Tract Flashcards Preview

07. Year 2: Alimentary System > Histology of the GI Tract > Flashcards

Flashcards in Histology of the GI Tract Deck (48)
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1

What is the hierarchical organisation?

Cells (ultrastructural level)

Tissues (molecular level)

Organ

Organ system

Organism

2

What is the first question you should ask yourself when looking at a histological image?

How magnified the image is

3

What are the 4 basic types of tissues?

Epithelial

Connective tissue

Muscle tissue

Nervous tissue

4

What are different classifications of epithelial tissue?

Columnar

Cuboidal

Squamous

5

What is epithelial tissue?

Tissue on the surface

6

What is connective tissue?

Space filling tissue

7

What are the functions of muscle tissue?

Contractions, movement

8

What are the functions of nervous tissue?

Integrates and coordinates

9

What is a tissue?

Group of cells that work together and perform the same function

10

What is a tissue formed from?

Cells and extracellular substance

11

What is an organ formed from?

Two or more types of tissues

12

What is 1?

13

What is 2?

14

What is 3?

15

What is 4?

16

What are the layers of the muscularis externa?

Inner circular muscle

Outer longitudinal muscle

17

What is the classification of the epithelium in th eoesophagus?

Stratified squamous non-keritinised epithelium

18

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

Skeletal muscle

19

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

Smooth muscle and skeletal muscle

20

What kind of muscle of the lower 1/3 of the muscular layer of the oesophagus?

Smooth muscle

21

What is 1?

22

What is 2?

23

Who do parietal cells secrete?

Hydrochloric acid

24

What do chief cells secrete?

Pepsinogen

25

What is the classification of the epithelium in the stomach?

Simple columnar epithelium

26

In what layer are the gastric glands in the stomach found?

Mucosa (above muscularis mucosae)

27

What is unique about the muscularis externa of the stomach?

Has 3 layers, containing a middle oblique muscle

28

What is found in the mucosa of the small intestine?

Villi

Cryptos of Leiberkuhn

Lymphoid aggregations (Peyer's patches)

29

What are crypts of Leiberkuhn?

Found in small intestine, similar to gastric glands of the stomach, contain stem cells that produce a number of different cell types including enterocytes

30

Where are Brunner's glands found?

Submucosa of the duodenum