A nurse is teaching a nursing student about a specific acquired ...

[Zulu123]

A nurse is teaching a nursing student about a specific acquired immunity system. Which statement by the student indicates a need for further teaching?
 
  a. Cell-mediated immunity and humoral immunity are both types of specific acquired immune responses.
  b. Each exposure to an antigen causes a faster, more intense response.
  c. Immune responses occur only after exposure to a foreign substance.
  d. The skin is a factor in specific acquired immunity.

Question 2

A nurse is reviewing the immune system with a group of nursing students. One student asks about the difference between cell-mediated immunity and humoral immunity. What does the nurse reply?
 
  a. Humoral immunity does not involve helper T cells in the immune response.
  b. Humoral immunity does not have a role in hypersensitivity reactions.
  c. Humoral immunity requires cytolytic T cells that attack antigens directly.
  d. Humoral immunity uses cells produced by B lymphocytes in the immune response.

[Melissahxx]

Answer to Question 1

ANS: D
The skin is a physical barrier that confers natural immunity. It is not a factor in specific acquired immunity. Cell-mediated and humoral immunity are both types of specific acquired immunity. In specific acquired immunity, each exposure to an antigen evokes a more intense response more quickly. Specific acquired immunity occurs only after initial exposure to an antigen.

Answer to Question 2

ANS: D
Humoral immunity refers to immunity mediated by antibodies, which are produced by B lymphocytes. Helper T cells have an essential role in antibody production by B cells. The antibody immunoglobulin E plays a role in hypersensitivity reactions. Cytolytic T cells do not produce antibodies; they are key players in cellular immunity.