Lecture 21

Question 1

What type of epithelium lines the esophagus?

Answer 1

Stratified epithelium

Question 2

Give one reason stratified epithelium is used in the esophagus

Answer 2

Protection from abrasion

Question 3

What are the four main parts of the stomach?

Answer 3

1. Cardia
2. Fundus
3. Body
4. Pylorus

Question 4

What is the omentum?

Answer 4

A double layer of peritoneum that connects one organ to another

Question 5

What is the lesser omentum

Answer 5

Stomach to liver

Question 6

What is the greater omentum?

Answer 6

Stomach to transverse colon

Question 7

What are the 3 layers of the muscularis?

Answer 7

Oblique (inner)
Circular (middle)
Longitudinal (outer)

Question 8

What is rugae/

Answer 8

Temporary folds that allow for the expansion of the stomach

Question 9

What are chief cells?

Answer 9

Produce enzymes

Question 10

Where are chief cells?

Answer 10

• Rough ER
• Apical zymogen granules (contain enzymes)
• Basal nucleus

Question 11

What do parietal cells produce?

Answer 11

Acid

Question 12

Where is gastrin and ghrelin secreted?

Answer 12

In the bloodstream

Question 13

Where are endocrine cells located?

Answer 13

In the mucosa

Question 14

Where does the bile duct meet the pancreatic duct?

Answer 14

Hepatoancreatic ampulla

Question 15

What do pancreatic islet alpha cells secrete?

Answer 15

Glucagon

Question 16

What do pancreatic beta cells secrete?

Answer 16

Insulin

Question 17

What do acinar cells secrete?

Answer 17

Digestive enzymes