18 Questions
Which type of immune response involves the activation of B-cells?
Humoral immunity
What is the function of Major Histocompatibility Complex (MHC) in antigen presentation?
To present antigens to lymphocytes
Which type of T-cell is responsible for directly killing infected cells?
Cytotoxic T-cells
What is the primary function of antigen-presenting cells (APCs)?
To present antigens to lymphocytes
Which of the following is a characteristic of adaptive immunity?
Antigen-specific
What is the function of CD3 markers on T-lymphocytes?
To determine the specific function of T-lymphocytes
What is the primary location of T-lymphocytes in the lymphoid tissue?
Diffuse lymphoid tissue
What is the main difference between primary and secondary nodules in lymphoid tissue?
Activity level of lymphocytes
Which of the following is NOT a type of lymphoid organ?
Liver
What is the function of the stroma in lymphoid organs?
To provide structural support
What type of lymphoid tissue is primarily composed of B-lymphocytes?
Nodular lymphoid tissue
What is the main function of the spleen in the lymphoid system?
To filter the blood
What is the primary function of Helper T-cells (Th cells)?
To produce cytokines that activate B-cell differentiation
What is the role of Cytotoxic T-cells (Tc cells)?
To induce apoptosis of target cells
What is the primary function of Regulatory T-cells (Ts cells)?
To suppress immune response when needed
What is the outcome of B-cell activation?
Differentiation to plasma cells and formation of memory B-cells
What is the primary difference between primary and secondary immune responses?
Primary response involves the activation of naive T-cells, while secondary response involves the activation of memory T-cells
What is the function of B-cell receptors (BCR)?
To recognize epitopes of antigens
This quiz covers the basics of the immune response, including the complement system, adaptive immunity, and the role of lymphocytes and antigen-presenting cells. It also explores the different types of immune responses, including humoral immunity and cell-mediated immunity.
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