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Flashcards in Histology Deck (33):
0

what kind of tissue lines the esophagus?

Non-keratonized stratified squamous epithelium

1

How fast is the peristalsis in the esophagus?

5cm/second

2

What is produced in the submucosa glands of the esophagus?

Mucus

3

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

All skeletal muscles

4

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

skeletal and smooth muscle

5

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

All smooth muscle

6

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

Vegal stimulation

7

What are the layers that make up the intestinal wall?

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

8

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

Circular

9

What lies between the circular and longitudinal muscle layers?

The Myenteric Plexus

10

Where are payers patches and other lymph tissue located?

In the submucosae

11

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

Stomach has gastric pits and villi

12

What are the ridges of the stomach lining called?

Rugae

13

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

Cardia and Pyloric; Body and Fundus

14

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

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

15

What layer are all the glands of the stomach located?

In the lamina propria, not in the submucosa

16

What type of cells line the stomach?

simple columnar epithelial

17

What do chief cells secrete?

Pepsinogen and gastric lipase

18

What do parietal cells secrete?

HCl and intrinsic factor

19

Where does Mucin come from in the stomach?

From neck glands in the gastric pits

20

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

Enteroendocrine cells

21

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

Mucus neck cells

22

What is the difference between cardia and pyloric gastric pits?

Pyloric pits are deeper and more convoluded

23

What cells make mucin in the duodenum?

Goblet cells

24

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

Crypts of lieberkhun

25

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

Brush border micro villi

26

What is the function of Paneth cells?

To defend the crypt of lieberkhun from bacterial infection

27

How big are villi?

0.5 -1 mm

28

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

Brunner's Glands

29

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

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

30

What is a distinguishing feature of the Ileum?

Payer's patches

31

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

Goblet cells

32

What are the two findings that distinguish the appendix?

Debris and Lymphatics