Lecture 1

Question 1

Difference between primary and secondary lymphoid organs

Answer 1

Primary lymphoid organs - Where lymphocytes arise and mature

Secondary lymphoid organs - Where lymphocytes reside to detect pathogens

Question 2

Can the innate immune system distinguish between infected and uninfected cells in one area?

Answer 2

No

Question 3

Treatment of rheumatoid arthritis

Answer 3

Suppress TNF

Question 4

Issues with TNF suppression as rheumatoid arthritis treatment

Answer 4

TNF is very important in containing mycobacterial infections

Question 5

Until what age does the thymus produce new T cells?

Answer 5

Age 10

Question 6

What happens at age 10 in terms of the adaptive immune system?

Answer 6

Thymus stops producing new T cells

Question 7

Until what age does the bone marrow produce new B cells?

Answer 7

Around 110

Question 8

How long does the adaptive immune system take to respond to a novel antigen?

Answer 8

5-10 days