, ▁the ▁der mis ▁and ▁the ▁hyp od erm is . ▁ ▁E pid erm is ▁ ▁E pid erm is , ▁" ep i " ▁coming ▁from ▁the ▁Greek ▁meaning ▁" over " ▁or ▁" up on ", ▁is ▁the ▁outer most ▁layer ▁of ▁the ▁skin . ▁It ▁forms ▁the ▁water proof , ▁protect ive ▁wrap ▁over ▁the ▁body ' s ▁surface ▁which ▁also ▁serves ▁as ▁a ▁bar rier ▁to ▁in fection ▁and ▁is ▁made ▁up ▁of ▁strat ified ▁squ am ous ▁ep ith el ium ▁with ▁an ▁underlying ▁bas al ▁l am ina . ▁ ▁The ▁e pid erm is ▁contains ▁no ▁blood ▁vessels , ▁and ▁cells ▁in ▁the ▁deep est ▁layers ▁are ▁n our ished ▁almost ▁exclus ively ▁by ▁diff used ▁o xygen ▁from ▁the ▁surrounding ▁air ▁and ▁to ▁a ▁far ▁less er ▁degree ▁by ▁blood ▁cap ill aries ▁extending ▁to ▁the ▁outer ▁layers ▁of ▁the ▁der mis . ▁The ▁main ▁type ▁of ▁cells ▁that ▁make ▁up ▁the ▁e pid erm is ▁are ▁Mer kel ▁cells , ▁ker atin ocy tes , ▁with ▁mel an ocy tes ▁and ▁L anger h ans ▁cells ▁also ▁present . ▁The ▁e pid erm is ▁can ▁be ▁further ▁sub div ided ▁into ▁the ▁following ▁str ata ▁( begin ning ▁with ▁the ▁outer most ▁layer ): ▁cor neum , ▁luc id um ▁( only ▁in ▁pal ms ▁of ▁hands ▁and ▁bottom s ▁of ▁feet ), ▁gran ulos um , ▁sp inos um , ▁and ▁bas ale . ▁C ells ▁are ▁formed ▁through ▁mit osis ▁at