kellbrook Posted December 6, 2011 Share Posted December 6, 2011 how does the epidermis get oxygen there are no blood vessels? also if get a cut, no deeper than the epidermis ,would the scab turn dark or black or stay yellow? Link to comment Share on other sites More sharing options...
kellbrook Posted December 8, 2011 Author Share Posted December 8, 2011 (edited) just found out ,red blood cells unload oxygen into plasma, plasma carrying oxygen unloads oxygen into cells normally if you get a cut the scab turns black logically because of red blood cells, but what if the cut is into an avascular layer like epidermis would th scab turn black or stay yellow from less or lack of red blood cells? Edited December 8, 2011 by kellbrook Link to comment Share on other sites More sharing options...
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