A Characteristic of the Human Eye That Enables the Cornea $\beta$

Multiple Choice

A characteristic of the human eye that enables the cornea to be transplanted with a 90% success rate is that _____.(Select all that apply.)

A) antigen-presenting cells in the eye do not express the co-stimulatory molecule B7
B) the cornea is not vascularized
C) anterior-chamber-associated immune deviation (ACAID) establishes a state of tolerance in the eye
D) only regulatory T cells express the adhesion molecules necessary to enter the cornea
E) the aqueous humor of the anterior chamber contains TGF- $\beta$ ,which downregulates CD40 and inhibits IL-12 secretion.