Identify the specific tissue/structure indicated by arrow “B” 

 Identify the specific tubes at letter B.

     Identify the specific cortical  region is indicated by”C”.

Identify the specific substance contained in letter E.

 Identify the specific tubes at letter D.

Identify the structure at the arrow labeled “C”

Identify the structure indicated by arrow “B”.

Identify the specific connective tissue structure indicated by the arrow.

Identify the area at “A”.  Be specific.

      What is the specific function of the cell clusters at letter C?