
For example, aldosterone functions to raise blood sodium levels and lower blood potassium levels by targeting the kidneys. Their function is to regulate the concentration of electrolytes circulating in the blood.


Threats to homeostasis, such as injury, chemical imbalances, infection, or psychological stress, can initiate a stress response. These polycyclic steroid hormones have a variety of roles that are crucial for the body’s response to stress (for example, the fight-or-flight response), and they also regulate other functions in the body. In humans and other animals, the adrenocortical hormones are hormones produced by the adrenal cortex, the outer region of the adrenal gland.
