All of the Following Regarding "Immune Privileged Sites" are True

Question

All of the following regarding "immune privileged sites" are true EXCEPT
A)they include corneal and brain tissue.
B)they do not have lymphatic vessels.
C)they are rarely rejected.
D)they include any tissue transplanted from a pig.
E)they explain how animals tolerate pregnancies without rejecting the fetus.

Accepted Answer

Immune privileged sites include certain organs and tissues such as corneal and brain tissue, reproductive tract, and testis. They have a lack of lymphatic vessels and are rarely rejected. However, this concept does not apply to tissues transplanted from non-human species, such as a pig, as they are recognized as foreign by the immune system and are not immune privileged. The concept of immune privilege also does not fully explain how animals tolerate pregnancies without rejecting the fetus, but it does play a role in certain aspects of fetal development.