Retina Flashcards
basal portion of retinal pigmented epithelium
infoldings adherent to basement membrane of Bruch’s membrane
-strong adhesion-
apical aspect of retinal pigmented epithelium
microvilli extending into layer of photoreceptors enveloping outer segment tips
melanosomes
pigment granules found heavily in RPE (densly in macula)
interphotoreceptor matrix composition
protiens and GAGs (glycosaminoglycans)
common location of retinal detachment
interphotoreceptor matrix
ellipsoid
part of inner segment that contains many mitochondria (nearer to outer segment)
myoid
Part of inner segment that is responsible for protein synthesis (nearer to cell body)
cilium
acts like a channel for plasmalemma- joins outer segment with inner segment (CONNECTING STALK)
outer segment
contains visual pigment molecules
outer fiber
extend from inner segment to cell body
inner fiber
Innermost portion of photoreceptor - runs inward from cell body and ends in specialized synaptic terminal containing vesicles
outer segment disks distinct from plasma membrane (cones or rods)
rod
outer segment disks are continuous with plasma membrane (cones or rods)
cones
rhodopsin
photosensitive pigment
spherule
rod