ATI RN
Chapter 15 The Lymphatic System and Immunity Review Questions Questions
Question 1 of 5
Identify the nonspecific defense mechanism that amplifies the inflammatory response and increases the likelihood of phagocytosis by binding to the surface of pathogens.
Correct Answer: B
Rationale: Complement proteins enhance inflammation and phagocytosis.
Question 2 of 5
Which lymphoid tissues trap and remove bacteria entering the throat:
Correct Answer: C
Rationale: Tonsils trap throat bacteria; axillary and cervical nodes drain other areas, Peyer's patches are intestinal, and thymus matures T cells.
Question 3 of 5
Central tolerance
Correct Answer: B
Rationale: Central tolerance induces B cell apoptosis in bone marrow; T cells exist but are deleted , B cells aren't in thymus , and anergy is peripheral .
Question 4 of 5
The binding energy between an antigen and antibody:
Correct Answer: B
Rationale: Antigen-antibody binding is reversible; follows mass action , not irreversible .
Question 5 of 5
In the above question, which antibody is extremely important in helping to eradicate this type of infection?
Correct Answer: D
Rationale: IgE fights parasites; IgM , IgA , IgG , and IgD have other roles.