ATI RN
Chapter 15 The Lymphatic System and Immunity Review Questions Questions
Question 1 of 5
An infection in the skin, such as a pimple, often produces pus. The major component of pus is:
Correct Answer: D
Rationale: Pus is mostly dead/dying neutrophils ; oxygen , nitrogen , NETs , or epithelial cells are minor components.
Question 2 of 5
Anemia
Correct Answer: D
Rationale: Anemia is characterized by low hemoglobin or red blood cell levels, reducing oxygen-carrying capacity, not related to leukocytes or cancer.
Question 3 of 5
Which of the following cell types is responsible for the humoral immune response?
Correct Answer: A
Rationale: B cells produce antibodies in the humoral immune response, targeting extracellular pathogens, unlike neutrophils, NK cells, or macrophages.
Question 4 of 5
Why has it been so difficult for researchers to develop effective antivirals for HIV?
Correct Answer: B
Rationale: HIV's rapid mutation rate hinders antiviral development, more than its replication strategy, T cell damage, or transmission mode.
Question 5 of 5
From the options below, which pattern recognition receptor (PRR) gene family is expressed by innate immune cells?
Correct Answer: D
Rationale: Innate immune cells express NLRs (cytosolic), RLRs (viral RNA), and TLRs (surface/cytosolic), making all options correct.