Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: valeg96 on 02/04/2014 15:52:49

Title: Why do we feel pain coming from the brain, if there are no pain receptors?
Post by: valeg96 on 02/04/2014 15:52:49
This is a really dumb question. I've always been told that the brain has no pain receptors, allowing people to undergo open-head surgery with only anesthetic acting on their skin/bone tissues.

Why do we feel pain when we have headaches? How about chronic headaches? You can even feel which part of the brain is it coming from...
Title: Re: Why do we feel pain coming from the brain, if there are no pain receptors?
Post by: evan_au on 02/04/2014 20:48:29
The tissues of the head, surrounding the brain are sensitive to pain, so abnormal stimulation of these can cause the sensation of pain.
You then feel that the pain is coming from a particular focus in your head (http://en.wikipedia.org/wiki/Headache).
Title: Re: Why do we feel pain coming from the brain, if there are no pain receptors?
Post by: valeg96 on 02/04/2014 21:50:34
So the pain comes from the external surface, not the inside... Thanks!