Rest of 3

Question 1

What is the important regulatory role of the epithelium of the GI tract?

Answer 1

It makes sure that the body absorbs the things that it wants and doesn’t absorb the things that is doesn’t want

Question 2

How are things absorbed in the GI tract taken into the body?

Answer 2

Through the capillaries and lymphatics

Question 3

What are the two layers of muscle in the GI tract?

Answer 3

Circular layer and Longitudinal layer

Question 4

What is the purpose of the Lantech Plexus in the GI tract?

Answer 4

They are important for controlling various aspects of motility and secretory functions

Question 5

What do the Endocrine cells of the epithelium of the GI tract do?

Answer 5

Secrete hormones into the blood that regulate digestion and appetite

Question 6

What do the Exdocrine cells of the epithelium of the GI tract do?

Answer 6

Secrete substances into the lumen that aid in digestion

Question 7

What is the function of the large ducts in the epithelium of the GI tract?

Answer 7

The ducts are conduits from accessory organs to the lumen of the tract

Question 8

What are Sphincters in the gut?

Answer 8

Rings of muscle that when constricted form a constriction point in the tube

Question 9

What are the functions of sphincters?

Answer 9

• Regulates the flow through the tract

* Prevents backflow

Question 10

What are the six sphincters in the GI tract and where are they?

Answer 10

1. Upper Esophageal (Pharynx/Esophagus)
2. Lower Esophageal (Esophagus/Stomach)
3. Pyloric (Stomach/Duodenum)
4. Ileocecal (Ileum/Cecum)
5. Internal Anal (Rectum/Anus)
6. External Anal (Rectum/Anus)