what are the dark shaded cells dispersed within the epithelial tissue called?

Question

and what do they produce for lubrication?......(has to do with tissues.)
also the intercellular background material that contains fluid,fibers, and minerals called?........(has to do with connective tissue).
what are the cells within neural tissue that support, protect and insulate the neuron?...(has to do with nervous tissue).
next question, fill ins.
----- ----- epithelium consists of two or more layers of square (cube) shaped cells.

Answer 1

Dark shaded ? Pseudostratified squamous epithelial tissue; produce mucous.

neural tissue support- myelin (fatty )

Stratified squamous epithelium

Not sure of these answers; but if you have nothing else, go with it!