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Which types of blood vessels can regenerate in humans/mammals? From what I understand, arteries and arterioles can be created later in life, while this is not necessarily the case with veins. However I don't understand why damaged blood vessels in an eye recover, while this is not the case for other body parts. Also, I don't understand how angiogenic agents work.

The types of blood vessels I've been thinking about include:

  • Arteries
  • Arterioles
  • Capillaries
  • Venules
  • Veins

Also, does the capability vary in different organs (e.g. blood vessels in a hand vs blood vessels in an eye)?

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    $\begingroup$ Is this by chance a homework question? If so, please read our homework policy. Essentially, we ask you to try and answer as much of the question yourself as you can, and put down your thinking on the parts you're not sure about. $\endgroup$
    – MattDMo
    Oct 1, 2014 at 15:21
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    $\begingroup$ @MattDMo - no, this is not a homework question. I did some research, and it seems that arteries and arterioles can be created later in life, while this is not necessarily the case with veins. However I don't understand why damaged blood vessels in an eye recover, while this is not the case for other body parts. I don't understand how angiogenic agents work. I mean I could spend a month researching the topic and reading every scientific article, but what is the point of this community? $\endgroup$
    – Den
    Oct 2, 2014 at 8:44

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