(sigh) depends on the balance of the thehematopoietic tissue and yellow marrow (consisting mainly of fat cells) and the particular cell structure of the bone at the time... I mean come on, it all boils down to fibroblasts, macrophages, adipocytes, asteoblasts, osteoclasts, and endothelial cells forming the sinusoids....etc, etc, etc ....Geeeez !
Sometimes I wonder why I still visit this site.
(too long...didn't read?......just cook your friggin meat, eat it and be happy!)
:P :P :P