You are presented with the question "what can be relaxed by dilation?" and the following answer choices: 
- artery
 - alveoli
 - the eyes
 - the skin
 - nerves
 - sweating
 - epidermal
 - breathing

Now knowing that dilation occurs when cell walls relax and an aneurysm is a dilation, or bubble, that occurs in the wall of an artery, choose the best answer.


 

 artery        