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Identify the vessel indicated by the letter “A”  

Name the heart chamber labeled “A”  

Identify the blood vessel indicated by the arrow labeled “A”.   

Give the function for the areas labeled “A” by the arrows in the histological image shown below.

Identify the blood vessels at the tip of the arrow labeled “A” in the circle of Willis.                            

In which vein would the fluid in structure “A” drain? (Be specific)  

After leaving the chamber at the tip of the arrow labeled “D” , where will blood flow next?      

Give the function of the structure surrounded by the red circle in the image below.   

Identify the blood vessels at the tip of the  arrow labeled “A”.  

Identify the artery indicated by the arrow labeled “B”