Define the physiological term “homeostasis” and explain the role of a reflex arc and regulation by negative feedback in maintaining homeostasis.

Answer 1

Homeostasis is the ability of the body to restore changed conditions to normal.

The role of the reflex arc is to maintain homeostasis and can be regulated by negative feedback. That is, once the set point has been reached, the negative feedback system shuts off to keep the system at or near the set point.