Iota Posted August 28, 2013 Share Posted August 28, 2013 Why doesn't the brain overheat within the confines of the skull? Alt. how does the brain cool itself down effectively, despite being surrounded mostly by thick bone? My guesses are that the brain doesn't produce that much heat, and maybe something to do with the layer of fluid between the brain and skull. Link to comment Share on other sites More sharing options...
StringJunky Posted August 28, 2013 Share Posted August 28, 2013 Via the bloodstream using vasodilation and vasoconstriction i think: the former for when it's getting too hot and the latter for when it's too cold. Link to comment Share on other sites More sharing options...
Iota Posted August 29, 2013 Author Share Posted August 29, 2013 OK thanks. I suppose it's not actually that different from other internal places in the body, I just mistakenly viewed the skull as having a significant impact against homoeostasis; as though internal organs could only cool by losing heat from the body surface. What's the chances of this news coming up just when I'm asking questions about the brain: http://www.bbc.co.uk/news/health-23863544 Link to comment Share on other sites More sharing options...
Titan1290 Posted September 4, 2013 Share Posted September 4, 2013 By yawning and not being in your body where it is really hot also I think you lose something like 60% of heat out of your head (the last on may be a myth but what i'm saying is a lot of heat is lost from your by head which means it might not get terribly hot up there anyway). Link to comment Share on other sites More sharing options...
MohitM Posted October 8, 2013 Share Posted October 8, 2013 By breathing Link to comment Share on other sites More sharing options...
Joshua201 Posted October 11, 2013 Share Posted October 11, 2013 Same way temperature homeostasis is accomplished Link to comment Share on other sites More sharing options...
oldsalt19 Posted December 3, 2013 Share Posted December 3, 2013 Why do certain parts of a properly operating gasoline engine not overheat? The cooling system, usually a fluid , circulates thereby removing or adding heat as needed. Actually, brain tissue is quite metabolically active. Even the cooling evaporation of sweat must be fed by transport of blood. Link to comment Share on other sites More sharing options...
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