Lecture 20

Question 1

What is the primary functions of the GI system?

Answer 1

1. Motility
2. Secretion
3. Digestion
4. Absorption

Question 2

What closes the GI system from both ends?

Answer 2

Sphincters

Question 3

What is the epithelium in the Mouth, cavity and esophagus

Answer 3

Stratified squamous

Question 4

What epithelium is in the stomach and small/large intestine

Answer 4

Simple columnar

Question 5

What do goblet cells contain?

Answer 5

• Columnar epithelium
• Goblet shape
• Apical mucous granules
• Basal nucleus

Question 6

What are the four layers of the Gut tube

Answer 6

1. Mucosa
2. Submucosa
3. Muscularis
4. Adventitia

Question 7

The mucosa consists of the

Answer 7

1. Epithelium
2. Lamina propria (FCT)
3. Muscularis mucosae

Question 8

The submusoca contains:

Answer 8

1. Glands

2. Blood vessels

Question 9

Secretion in the submucosa is regulated by the…

Answer 9

Submucosal nerve plexus, which is part of the Enteric Nervous System.

Question 10

The muscularis consists of…

Answer 10

Smooth muscle.

Question 11

What two layers of the muscularis

Answer 11

1. Inner circular

2. Outer longitudinal

Question 12

The myenteric plexus is part of the ____ system

Answer 12

ENS

Question 13

Where is the myenteric plexus located?

Answer 13

In between muscle layers

Question 14

The adventitia is the ________ layer of the gut tube

Answer 14

outermost

Question 15

What type of membrane is the peritoneum?

Answer 15

Serous

Question 16

What is between the parietal and visceral layer of the peritoneum?

Answer 16

A fluid filled space

Question 17

Where is the retroperitoneal located?

Answer 17

Posterior to the peritoneum

Question 18

What is the mesentery?

Answer 18

A double layer of visceral peritoneum that connects organ to body wall

Question 19

What is the omenta?

Answer 19

A double layer of visceral peritoneum that connects an organ to another organ

Question 20

What 3 pairs connect to the oral cavity via ducts?

Answer 20

1. Parotid - serous fluid with amylase
2. Sublingual - Mucous only
3. Submandibular - Mixes

Question 21

In salivary gland, clusters of cells are called

Answer 21

Acinus

Question 22

What do acinar cells secrete?

Answer 22

Enzymes - amylase

Question 23

What do duct cells secrete?

Answer 23

Bicarbonate

Question 24

Where is the esophagus located?

Answer 24

Posterior to the trachea. It extends from the pharynx to the stomach

Question 25

What type of muscle is in the first 1/3 of the esophagus?

Answer 25

Skeletal muscle