ARTERIES:

Slides 86

Large, Elastic/Conducting Artery (Aorta, Carotid, Subclavian)

Re-visit the architecture of the large, elastic aorta to make sure you appreciate the well-defined, tri-level organization of this type of vessel.

Intima: Thick intima + subendothelial layer IEL may be difficult to visualize as a distinct structure due to the large amount of elastic tissue in the Media (40-70 layers thick).  Adventitia is relatively underdeveloped yet may have a vasa vasorum.  What would an aortic aneurysm be caused by?