Gastrointestinal Tract Questions and Answers PDF Related

Review Gastrointestinal Tract Questions and Answers PDF related questions and content

Which of the following is critical in terms of triggering a fever response?

  • A. an infection
  • B. a local widening of blood vessels
  • C. activation of the complement system
  • D. the resetting of the body's temperature set point in the hypothalamus
Correct Answer: D

Rationale: The correct answer is D because the hypothalamus acts as the body's thermostat and controls temperature regulation. When the body detects an infection or other triggers, the hypothalamus resets the temperature set point higher, causing a fever response to help fight off the infection. Choices A, B, and C are incorrect because while an infection can trigger a fever response, it is the hypothalamus that ultimately controls and initiates the response by resetting the temperature set point, not a local widening of blood vessels or activation of the complement system.