Histology - GI Flashcards by Joseph Keane | Brainscape

Q

What does the oral cavity do?

A

-Receives food
-Chews food
-Starts digestion

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What kind of lining does the mouth need?

A

-Robust lining
-Squamous epithelium
-Stratified
-Keratinised

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is this?

A

Squamous cell carcinoma

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is this?

A

Squamous cell carcinoma

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Label this diagram:

A

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is this?

A

-Secretory glandular epithelium
-Top right shows salivary duct

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does this show?

A

Sjorgen’s sydrome

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does the oesophagus do?

A

-Swallows food
-Moves food down to stomach

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What kind of lining does the oesophagus have?

A

Squamous epithelium

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is this?

A

Squamous epithelium (oesophagus)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does this show?

A

-Secretary submucosal cells of oesophagus
-Lubricates food as it moves down the oesophagus

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does the stomach do?

A

-Digests food
-Not much absorption

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is this?

A

-Gastric fundic mucosa (produce mucus)
-buffers between lumen acid and epithelium

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What are these?

A

-Parietal cells of stomach
-Produce acid

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What are these?

A

-Chief cells
-Produce pepsinogen and lipases

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What is this?

A

-Gastric antral mucosa
-Produces mucus but not acid

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does this show?

A

-Helicobacter pylori
-Lives in stomach mucus

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What do the intestines do?

A

-Digest food
-Absorb food
-Absorb water
-Resist bugs

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does this show?

A

Glandular epithelium of intestine

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does this show?

A

Endocrine cells within intestinal epithelium

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

What does this show?

A

-Submucosa of intestine
-Connective tissue
-Collagen and blood vessels

Q

What does this show?

A

-Muscularis propria of intestine
-Smooth muscle
-Controlled by autonomic nervous sytem

Q

What does this show?

A

-Muscularis propria of intestine
-Smooth muscle
-Controlled by autonomic nervous system (cause contraction to happen)

Q

Label all the layers of this diagram:

A

-Lumen
-Mucosa
-Submucosa
-Muscularis propria
-Serosal surface

Q

Label this diagram:
What do the yellow cells do?

A

-Pacemaker cells
-Pace rate of muscular contraction

Q

What cells are stained brown?

A

Interstitial cells of Cajal

Q

Label this diagram:
What causes them?

A

-Interstitial cells of Cajal
-Commenest stromal tumour in gut

Q

What is the serosal surface?

A

-Entry of blood supply
-Mesenteries
-Covered by mesothelial cells

Q

What does this show?

A

-Basic arrangement of cells in the intestine
-Crypts

Q

Label this crypt:
Where does all the division take place?

A

-Division takes place at bottom of stem cells
-Transit cells move up
-Mature into epithelial cells at top

Q

What does the duodenum do?

A

-Digests food
-Absorbs food
-Resists bugs

Q

What is the role of the anatomy of the small intestine and how?

A

-Very large surface area
-Villi and microvilli

Q

What does this show?

A

Villi

Q

What does this show?

A

Tip of villi

Q

What does this show?

A

Microvilli

Q

What does this show?

A

Lymphocytes in the small intestine

Q

What does this show?

A

-Lymphocytes in the small intestine
-Move around looking for pathogens

Q

What does this show?

A

Mucosa-associated lymphoid tissue (MALT)

Q

What does this show?

A

-Giardia lamblia
-Parasite
-Malabsorption
-Diarrhoea

Q

What does this show?

A

-Coeliac disease
-Villi are lost

Q

What does this show?

A

Coeliac disease

Q

What does this show?

A

-Coeliac disease
-A lot of lymphocytes in the intestinal wall
-Attack protein in gluten (glyodin)
-Kill duodenal epithelium producing flat villi

Q

What do duodenum and ileum do?

A

-Digest food
-Absorb food
-Resist bugs

Q

What do the jejunum and ileum look like histologically?

A

Villi same as duodenum

Q

What does the appendix do?

A

-It is not exactly known
-Possible safehouse of good bacteria to repopulate the colon

Q

What does this show?

A

-Colon
-Flat
-Most absorption has taken place

Q

Label this diagram:

A

Histology of appendix

Q

What does colon do?

A

-Absorbs little food
-Absorbs water
-Resists bugs

Q

What does this show?

A

-Colon
-No villi
-Glandular mucosa

Q

What is this?

A

-Ulcerative colitis
-Only affects mucosa
-Distinct border