18 Questions
What is the primary function of the innate immune system?
To recognize and respond to a wide variety of molecular patterns associated with microbes and damaged host cells
Which of the following is a key feature that distinguishes innate and adaptive immunity?
Innate immunity has limited diversity, while adaptive immunity has a very large diversity of antigen receptors
Which of the following is a primary lymphoid organ?
Thymus
Which of the following is a key function of the skin and mucosal epithelia as part of the innate immune system?
To provide a physical and chemical barrier against microorganisms
What is the primary role of lymphocytes in the adaptive immune system?
To generate highly specific antigen receptors and mediate targeted immune responses
Which of the following is a secondary lymphoid organ?
Lymph nodes
Where do immature lymphocytes develop?
Thymus
Which tissue is NOT considered a secondary (peripheral) lymphoid tissue?
Thymus
What is the site of generation of circulating blood cells?
Bone marrow
Which of the following is a mucosal-associated lymphoid tissue?
Peyer's Patches
Which organ is associated with skin-associated lymphoid tissue?
Spleen
Where are lymphocytes derived from a common bone marrow lymphoid progenitor cell?
Bone marrow
Which of the following is a primary lymphoid organ where immature lymphocytes develop?
Thymus
Which of the following is a secondary lymphoid organ where antigen is localized to be exposed to mature lymphocytes?
Lymph nodes
What is the function of the lymphatic system?
To drain fluid from tissues and maintain fluid homeostasis
What is the structure of a secondary lymphoid follicle?
A ring of B cells surrounding a germinal center with proliferating B and T cells
Which of the following is an example of a mucosal-associated lymphoid tissue (MALT)?
Peyer's patches
What is the function of lymphatic capillaries?
To permit free uptake of interstitial fluid
Explore the characteristics of innate and adaptive immunity, focusing on their specificity, diversity, and more. Learn about the recognition molecules encoded by inherited genes in innate immunity, and the receptor genes formed by somatic recombination in adaptive immunity.
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