How do hormone responses occur so rapidly? When people are frightened/surprised, they can almost immediately feel a rush of adrenaline and heart rates rise, faces flush, etc. How do hormones reach appropriate organs so quickly? Why isn’t there more of a delay for the hormones to travel?
In: Biology
So adrenaline is a neuro-hormone which means it’s release can be triggered by the electrical impulses from your brain. This makes the release of it suuuuper quick and it also happens to come from your adrenal glands above the kidneys, and the kidneys are getting 20-25% of all your blood flow which makes it circulate through the body super fast. The receptors for it are all on the surfaces of cells so it’s recognized pretty quickly too and the response is multiplied over a few stages inside the cell which gives it a quick and robust response. It’s basically just a speedy process overall
Latest Answers