because the rpe in vivo is exposed to serum through the fenestrated choriocapillaris , and because phagocytosis by the rpe outer segments shed by the photoreceptors contributes to the maintenance of the functional integrity of the neural retina , we suggest that the release of t-pa associated with the phagocytic activity of rpe cells is an important physiologic event .
C0031760
photoreceptors
C1518263
neural retina