Identify the endocrine organ in this histological slide.  

Identify the artery A in the diagram below. 

Identify Structure B on the slide below. 

Identify the vein C in the diagrams below. 

Identify the portion of the figure labeled C.  

Identify the portion of the histological slide labeled Z.  

Identify the vein C in the diagram below. 

Identify the vein B in the diagrams below. 

Identify the portion of the figure labeled D.  

Identify the portion of the histological slide labeled C.