Expression and Function of the Endocannabinoid System in the Retina and the Visual Brain

Table 3

Cannabinoid receptor type 2 protein distribution in the adult retina.

Retinal cells
Photoreceptors	Expression in the outer and inner segments of cones [33]; Absence of expression in cone pedicles [33]; Expression in the inner and outer segments and cell body of rods [33]
Horizontal cells	Expression at the membrane of the soma and in horizontal cells, dendrites [32, 33]
Bipolar cells	Expression in the membrane of the soma and axons of rod bipolar cells [33]; Expression in the membrane of the soma of cone bipolar cells [33]
Amacrine cells	Expression in some subtypes [32, 33]
Ganglion cells	Expression in the soma [32, 33]
Müller cells	Absence of expression at the membrane of the soma, in Müller cells, inner and outer processes [33]; Expression in Müller cells’ processes in the vervet monkey only [34]