Module 4 Lec 2

Question 1

Where do immune system cells originate?

Answer 1

The bone marrow

Question 2

What is the progenitor of the Myeloid and lymphoid cells?

Answer 2

Hematopoietic cells

Question 3

what is the precursor of granulocytes, macrophages dendritic cells and mast cells?

Answer 3

Myeloid progenitor cells

Question 4

What is the precursor of lymphocytes B and T cells?

Answer 4

Lymphoid progenitor cells

Question 5

what are the types of macrophages in organ tissues?

Answer 5

Kuphee in liver, Microglia in the brain and alveolae macrophages in the lungs

Question 6

what 3 cells can engulf particles?

Answer 6

macrophage. dendritic cell, neutrophil

Question 7

when do lymphocytes activate to mount an immune response?

Answer 7

when they encounter antigen

Question 8

what is the function of cytokine?

Answer 8

cells - cell communication for immune response

Question 9

what is innate immunity?

Answer 9

the first line of defense. consists of barriers

Question 10

what is adaptive immunity?

Answer 10

delayed immunological response
activation of B cells, antibodies and T cells

Question 11

what are interferons and when are they produced?

Answer 11

proteins released by cell when infected by virus
stimulate antiviral proteins

Question 12

what is the purpose of fevers?

Answer 12

increase mobility of phagocytosis
increase production of cytokines

Question 13

what is the purpose of inflamation?

Answer 13

vasodilation and bring in macrophages for particle removal

Question 14

what are 3 characteristics of adaptive immune system?

Answer 14

highly specific
slower to respond
built in memory for second exposure cases

Question 15

what is the humoral and cell-mediated immunity>

Answer 15

humoral - antibody production
cell-mediated - memory T cell production