part_of part of part of contained in develops_from develops from existence overlaps existence starts during or after material entity anatomical entity anatomical entity Stage 7 Stage 8 photoreceptor neuron PMID:17390146 PMID:25493551 PMID:25772472 photoreceptive neuron PMID:26618653 PMID:29674431 PMID:24063805 PMID:27612384 PMID:24922054 PMID:27068018 PMID:27606067 PMID:29674432 https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4796 PMID:28216315 PRN PMID:23318641 photoreceptor cell PMID:21852957 PMID:28976975 PMID:30471994 PMID:23250205 Bipolar photoreceptor neurons with dendritic projections into the optic cup and axons that innervate the underlying brain. Planarian_Anatomy ISBN:9780070316607 photosensitive cell PMID:25254346 PMID:16033796 PMID:28495872 PMID:20967238 PMID:17251262 PMID:29547123 PMID:17553481 PMID:27800171 optical neuron PMID:30399335 PMID:30143032 PMID:22411224 PMID:18202849 PMID:22427692 PMID:22884275 PMID:26017970 PMID:28137894 PMID:22549959 PMID:19048075 PMID:17942485 PMID:25356635 visual neuron PMID:21282632 PMID:22339734 PMID:22445864 PMID:30485821 neuronal photoreceptive cell PMID:28245923 PMID:17905225 eye trail cell neuron anterior region of the whole animal dorsal region of the whole animal juvenile head adult hermaphrodite asexual adult