Histology

Question 0

How fast is the peristalsis in the esophagus?

Answer 0

5cm/second

Question 1

what kind of tissue lines the esophagus?

Answer 1

Non-keratonized stratified squamous epithelium

Question 2

What is produced in the submucosa glands of the esophagus?

Answer 2

Mucus

Question 3

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

Answer 3

All skeletal muscles

Question 4

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

Answer 4

skeletal and smooth muscle

Question 5

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

Answer 5

All smooth muscle

Question 6

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

Answer 6

Vegal stimulation

Question 7

What are the layers that make up the intestinal wall?

Answer 7

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

Question 8

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

Answer 8

Circular

Question 9

What lies between the circular and longitudinal muscle layers?

Answer 9

The Myenteric Plexus

Question 10

Where are payers patches and other lymph tissue located?

Answer 10

In the submucosae

Question 11

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

Answer 11

Stomach has gastric pits and villi

Question 12

What are the ridges of the stomach lining called?

Answer 12

Rugae

Question 13

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

Answer 13

Cardia and Pyloric; Body and Fundus

Question 14

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

Answer 14

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

Question 15

What layer are all the glands of the stomach located?

Answer 15

In the lamina propria, not in the submucosa

Question 16

What type of cells line the stomach?

Answer 16

simple columnar epithelial

Question 17

What do chief cells secrete?

Answer 17

Pepsinogen and gastric lipase

Question 18

What do parietal cells secrete?

Answer 18

HCl and intrinsic factor

Question 19

Where does Mucin come from in the stomach?

Answer 19

From neck glands in the gastric pits

Question 20

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

Answer 20

Enteroendocrine cells

Question 21

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

Answer 21

Mucus neck cells

Question 22

What is the difference between cardia and pyloric gastric pits?

Answer 22

Pyloric pits are deeper and more convoluded

Question 23

What cells make mucin in the duodenum?

Answer 23

Goblet cells

Question 24

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

Answer 24

Crypts of lieberkhun

Question 25

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

Answer 25

Brush border micro villi

Question 26

What is the function of Paneth cells?

Answer 26

To defend the crypt of lieberkhun from bacterial infection

Question 27

How big are villi?

Answer 27

0.5 -1 mm

Question 28

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

Answer 28

Brunner’s Glands

Question 29

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

Answer 29

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

Question 30

What is a distinguishing feature of the Ileum?

Answer 30

Payer’s patches

Question 31

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

Answer 31

Goblet cells

Question 32

What are the two findings that distinguish the appendix?

Answer 32

Debris and Lymphatics