[Campbell Biology P.1004] Which of the following accurately describes an event that occurs du... | Practice Question

Which of the following accurately describes an event that occurs during a local inflammatory response as depicted in Figure 43.5?

  • A: Macrophages release histamines, causing capillaries to dilate.
  • B: Signaling molecules attract neutrophils to the injury site.
  • C: Capillaries constrict to prevent fluid loss from the injured tissue.
  • D: Red blood cells are the primary immune cells that digest pathogens and cell debris at the injury site.

Explanation

During a local inflammatory response, signaling molecules like cytokines released by macrophages attract neutrophils to the injury site, which then enter the tissue to combat infection and clear debris.