Immunology: The
Immune System test
questions and answers
The Role of the Immune System - answer 1) Defends against invaders
(external and internal)
2) Distinguishes self from non-self
3) Discriminates between potentially harmful and nonharmful agents
4) Recalls previous encounters with the same agents
5) Mounts an effective response
Name the three types of phagocytic cells. - answer 1)
Monocytes/Macrophages
2) Granulocytes (neutrophils, eosinophils, basophils)
3) Dendritic cells (antigen present cells - APC)
Which phagocytic cells engulfs the antigen and takes it to the lymph
system to activate the Adaptive immune response? - answer Dendritic
cells - these are the bridge between innate and adaptive immunity
,Which cells mediate the humoral immunity response and produce
antibodies? - answer B Lymphocytes
What is the humoral immunity response (brief overview)? - answer -
there are tons of B lymphocytes waiting around to be activated
- produce antibodies against antigens
- these cells have a memory component (subsequent exposures =
quicker reaction)
Which cells are involved in the cell-mediated immunity response? -
answer T lymphocytes
- they need antigen present cells to activate them
- includes Helper T cells and cytotoxic T cells
Natural Killer (NK) Cells are part of which immune response - answer
Innate Immunity
What is the role of the NK cells? - answer - recognize abnormal cells
(e.g. cancer)
- recognize cells that have intracellular pathogens in them (e.g. viruses)
- NKs either kill these cells or have no response
, Which system removes excess fluid, proteins, and large particles from
interstitial spaces? - answer Lymphatic system
The lymphatic system drains into the _____ to the venous circulation -
answer Superior Vena cava
What organs are home to the immune response? - answer The
lymphoid organs
Name the two Central lymphoid organs - answer 1) bone marrow
2) thymus
Name the three Peripheral lymphoid organs. - answer 1) lymph nodes
2) spleen
3) mucosa-associated lymphoid tissues (respiratory system, GI system,
reproductive system)
What two things are redundant in the immune system because they do
they same job? - answer Spleen and lymph nodes
Where are immature T cells produced? - answer Bone Marrow
Where do immature T cells go to mature/differentiate? - answer
Thymus
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