Dermis/Epithelia/Integument -- Difference? Derivation?

[Divineimpetus]

I am having trouble differentiating between the Dermis/Epithelia/Integument.

Where is the Epithelia derived? (meso/etco/end)
Which one is an other word for 'skin'? (dermis/epithelia/integument)

Any help would be great.

Thanks.

 

[dat_student]

I am having trouble differentiating between the Dermis/Epithelia/Integument.

#1) Where is the Epithelia derived? (meso/etco/end)
#2) Which one is an other word for 'skin'? (dermis/epithelia/integument)

Any help would be great.

Thanks.

#1) ecto

#2) epithelia