Identify the vessel at the tip of the arrow labeled “D”  

Identify the artery indicated to by the arrow labeled “A”  

Give the function of the structures at the tip of the pointer.  

Name the hormone that is released by the organ surrounded by the red circle below.     

Which heart valve is auscultated (heard) at the arrow labeled “B”?                                          

Identify the blood vessel indicated by the arrow.  

Identify the white blood cell in the image below

Identify the blood vessels indicated by the arrows.  

Identify the structure surrounded by the red circle in the image below.   

Identify the vessel indicated by the letter “A”