 Quote by hypatia
We have several areas of our bodies that the immune system appears to be incapable of function. These are called immune-privileged sites, and include the eye, brain, ovary and testis.
You can read more about it here.
www.mai-journal.com/interviews/streilein.pdf - |
Interesting...although the brain does have immune cells (macrophages), so I wouldn't claim that immune-privileged sites do not have a functioning adaptive immune system. There's also the innate immune response to consider.
Cartilege would also be interesting to look at- there's no blood supply.