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On Sat, 2 Mar 1996, Robert Wolov wrote: > > > >I'd like to hear what your buddy, the hyperbaric physiologist has to say. > > > >One list member has suggested to me that the heavily overweight divers may > >actually absorb less nitrogen then currently assumed (based on Nitrogen > >solubility in fat) because of the extremely poor vascularization of fatty > >tissues (this means slower in and MUCH SLOWER OUT), which would place > >diffusion rates in these tissues at well below what will occur in areas with > >well developed capillary beds.. > > That's a tough factor to quantify, but fatty tissue is not that poorly > vascularized. When you think about it anatomically, in order for the body > to use fat stores (which is after all the plan) then you need a fairly > generous blood supply to transport triglycerides and all that good energy > providing stuff out into the body. If you look at fat under a microscope > you can see a fairly rich network of capilaries around the fat cells. > (nothing like the lungs...but not "avascular" either) So I personally > have little doubt that the N2 in the blood can find it's way pretty well > to the fat. Hmmmm...other then possibly reintroducing bubbles into the bloodstream, what are the negative effects of bubbles in fatty tissue? I sort of thought that it was reasonably well understood (through computer micrography) that a major portion of vascular bubbles came from fatty tissues? Nick Simicich - njs@sc*.em*.ne* - (last choice) njs@bc*.vn*.ib*.co* http://scifi.emi.net/njs.html -- Stop by and Light Up The World!
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