http://www.principlesofanatomyandphysiology.com/why-does-the-skeletal-system-need-heat/ Discussions on The Human Body Sat, 17 Dec 2011 21:48:12 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.principlesofanatomyandphysiology.com/why-does-the-skeletal-system-need-heat/comment-page-1/#comment-1168 Gregor S Tue, 20 Oct 2009 11:04:36 +0000 http://www.principlesofanatomyandphysiology.com/why-does-the-skeletal-system-need-heat/#comment-1168 because of the temperature because of the temperature

]]> http://www.principlesofanatomyandphysiology.com/why-does-the-skeletal-system-need-heat/comment-page-1/#comment-1167 MaviGozl Tue, 20 Oct 2009 10:10:44 +0000 http://www.principlesofanatomyandphysiology.com/why-does-the-skeletal-system-need-heat/#comment-1167 Heat? The bones are not just mineral substances. They have living cells, particularly in the marrow, where hematopoiesis occurs. Compact bone--the most dense bone---also has living cells (osteoblasts and osteoclasts among them). All cells need a temperature of about 37 degrees in order to maintain metabolic (catabolic, biosynthetic) pathways for their homeostatic maintenance and their functions. This temperature--maintained by the generation of "heat"---is used to keep enzymatic reactions working properly. I know of no other special need for heat by the bones in particular. Heat?
The bones are not just mineral substances. They have living cells, particularly in the marrow, where hematopoiesis occurs. Compact bone–the most dense bone—also has living cells (osteoblasts and osteoclasts among them).
All cells need a temperature of about 37 degrees in order to maintain metabolic (catabolic, biosynthetic) pathways for their homeostatic maintenance and their functions. This temperature–maintained by the generation of “heat”—is used to keep enzymatic reactions working properly.
I know of no other special need for heat by the bones in particular.

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