Barrier Immunity

Question 1

Define Barrier Organs, Microbiota, and Microbiome

Answer 1

Question 2

What does Barrier immunity refer to?

Answer 2

Question 3

What is MALT

What microbes live in harmony with out body?

Answer 3

Question 4

What are all barrier surface lined with?

How does that help with immunity? (3)

Answer 4

Question 5

How is homeostasis maintained between microbes and the immune system?

Answer 5

Question 6

What physical barriers are used in the skin, stomach and respiratory tract?

Define enterocytes, paneth cells, tuft cells, AT1/AT2 cells?

Answer 6

Question 7

What immunoglobulin is used in all barrier tissues?

Define characteristics (7)

Answer 7

Question 8

What APCs are present in barrier epithelial cells? (5)

Answer 8

Question 9

What role do innate lymphoid cells play in barrier immunity?

Answer 9

Question 10

What are the different types of barrier immune responses?

Answer 10

Question 11

What role do regulatory T cells play in barrier immunity?

Answer 11

Question 12

What role do CD8 T cell play in barrier immunity?

Answer 12

Question 13

What role do lymphoid tissues place in barrier immunity?

Answer 13

Question 14

How does the barrier immune system initiate tolerogenic and inflammatory responses to microorganisms>

Answer 14

Question 15

What are the three layers of the skin

Does it produce mucus

Where are the keratinocytes located?

Answer 15

Question 16

What do the Langerhans’ cell in the skin do?

What lymphocytes are included in the epidermis?

Answer 16

Question 17

What do Treg cells do in the skin?

Answer 17

Question 18

What is the most common bacteria on the skin?

Answer 18

Question 19

Are bacteria on the skin only protective?

Answer 19

Question 20

What microbes does the GI tract host?

Answer 20

Question 21

How does the immune system differ in the small and large intestine?

Answer 21

Question 22

What are the different layers of the gut surface?

Answer 22

Question 23

What are intestinal epithelial cells?

What’s the most common type?

What are other types?

Answer 23

Question 24

What intestinal cells sample antigens in the lumen and transfer them to the lamina propria?

Answer 24

Question 25

What are one of the first line of defense against pathogens in the intestine?

Answer 25

Question 26

What is the difference between ILC3s and Th17 in intestinal homeostasis?

Answer 26

Question 27

What is intestinal dysbiosis?

Answer 27

Question 28

The gut immune system recognizes and responds to pathogens in two phases, what are they?

Answer 28

Question 29

What is the anatomy of the respiratory tract?

Answer 29

Question 30

What epithelial cells are in the upper respiratory tract?

Answer 30

Question 31

What is the respiratory immunity overview?

Answer 31