Fig. 5

Photomicrographs of the developing eye (a, b) and nasal cavities. a CB1R labelling is visible in the epithelium comprising the capsule of the lens (asterisks), in the cell cytoplasm of the mesothelial layer of the cornea (mes) and in the surface epithelium of cornea (arrowheads); b CB1R immunoreactive fibres of the optic nerve (opt), the inner (inn) and outer (arrow) layer of the optic cup (future nervous and pigmented layer of retina) are shown; c CB1R reactivity is visible in the olfactory epithelium (olf) and in the olfactory nerve branches (full arrowheads). Scale bars are equal to 50 µm