Billy has a normal body temperature at 98.6 degrees fahrenheit, but he has just entered the indoor gym with no air conditioning causing the receptor to monitor his body temperature as he begins to play ball.
I'm ready to play some basketball!
While playing basketball in the inclosed gym, Billy's body temperature rises and the afferent pathway travels to the control center to inform it.
Wow, it's getting quite hot in here after playing of this basketball.
Billy has sat down to take a break from playing basketball allowing for the control center to receive the input from the receptor.
It's getting way too hot in here for me to keep playing basketball.
The efferent pathway made it to the effector causing Billy's body to sweat due to the heat he built up while playing basketball.
It's about time for me to go. I can feel all of the sweat dripping down my face. Gross!
Once Billy is outside he feels the huge gust of cold wind along his face along with the ice cold water drops from the ice sickles. This causes the receptor to realize the change in climate and sends it through the afferent pathway. Once sent to the control center then through the efferent pathway and to the effector Billy's body temperature begins to lower.
It's freezing outside!
Then Billy runs to his Dad's car which has a heater. The receptor sends it back through the afferent pathway to the control center telling it to warm back up. The efferent pathway then tells the effector that Billy's body needs to warm up again and restore homeostasis.
Good thing the heater in the car is on to warm me up.