Which of the following best summarizes the purpose of activation of the hypothalamic-pituitary-adrenal (HPA)axis,which involves increased cortisol and temporary immune system suppression?
A) to propagate the species through increased drive for reproduction
B) to increase survival value by storing up rather than expending energy reserves
C) to increase survival value by quickly responding to threats
D) to improve psychological health by suppressing memories of threatening events

Question

Quizplus · Accepted Answer

Activation of the HPA axis and the associated increase in cortisol levels and temporary suppression of the immune system are part of the body's stress response system. This response prepares the body to quickly respond to threats, whether they are physical or psychological, and to increase the chances of survival.

Which of the Following Best Summarizes the Purpose of Activation