Histology Flashcards

0
Q

How fast is the peristalsis in the esophagus?

A

5cm/second

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1
Q

what kind of tissue lines the esophagus?

A

Non-keratonized stratified squamous epithelium

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2
Q

What is produced in the submucosa glands of the esophagus?

A

Mucus

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3
Q

What makes up the Musculo Externa of the upper third of the esophagus?

A

All skeletal muscles

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4
Q

What makes up the Musculo Externa of the middle third of the esophags?

A

skeletal and smooth muscle

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5
Q

What makes up the Musculo Externa of the lower third of the esophagus?

A

All smooth muscle

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6
Q

What controls the skeletal muscles of the upper third of the esophagus?

A

Vegal stimulation

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7
Q

What are the layers that make up the intestinal wall?

A

Lining epithelium, Lamina propria, Muscularis Mucosae, Sub Mucosa, Muscular Externa, Mesothelia Cells, Peritoneum

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8
Q

What is more internal Circular muscle layer or Longitudinal muscle layer?

A

Circular

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9
Q

What lies between the circular and longitudinal muscle layers?

A

The Myenteric Plexus

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10
Q

Where are payers patches and other lymph tissue located?

A

In the submucosae

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11
Q

What are two significant differences to tell apart esophageal and gastric epithelial lining?

A

Stomach has gastric pits and villi

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12
Q

What are the ridges of the stomach lining called?

A

Rugae

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13
Q

What two pairs of regions in the stomach are alike in epithelial makeup?

A

Cardia and Pyloric; Body and Fundus

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14
Q

What is different about the body and fundus compared to the cardia and pylorus?

A

Body and fundus have more complicated, deeper and more compact arrangments of gastric pits

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15
Q

What layer are all the glands of the stomach located?

A

In the lamina propria, not in the submucosa

16
Q

What type of cells line the stomach?

A

simple columnar epithelial

17
Q

What do chief cells secrete?

A

Pepsinogen and gastric lipase

18
Q

What do parietal cells secrete?

A

HCl and intrinsic factor

19
Q

Where does Mucin come from in the stomach?

A

From neck glands in the gastric pits

20
Q

What are the cells that secrete protein into the capillary system lining the gastric pits called?

A

Enteroendocrine cells

21
Q

What kinds of secreting cells are found in abundance in the cardia and pyloric regions?

A

Mucus neck cells

22
Q

What is the difference between cardia and pyloric gastric pits?

A

Pyloric pits are deeper and more convoluded

23
Q

What cells make mucin in the duodenum?

A

Goblet cells

24
Q

What large structures exist in the duodenum that house the secreting cells?

A

Crypts of lieberkhun

25
Q

What is different about the epithelium in the duodenum compared to that in the stomach?

A

Brush border micro villi

26
Q

What is the function of Paneth cells?

A

To defend the crypt of lieberkhun from bacterial infection

27
Q

How big are villi?

A

0.5 -1 mm

28
Q

What produces a alkaline mucus in the first two sections of the duodenum?

A

Brunner’s Glands

29
Q

What is the function of Brunner’s glands and where are they found?

A

They produce an alkaline mucus and are found in the first two sections of the duodenum

30
Q

What is a distinguishing feature of the Ileum?

A

Payer’s patches

31
Q

What excretory cell is found in great abundance in the large intestine?

A

Goblet cells

32
Q

What are the two findings that distinguish the appendix?

A

Debris and Lymphatics