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Fig. 3 | Frontiers in Zoology

Fig. 3

From: The central nervous system of Oweniidae (Annelida) and its implications for the structure of the ancestral annelid brain

Fig. 3

Schematic drawing of the innervation of head appendages. a: Myriowenia sp.; dorsal view. b: Owenia fusiformis anterior view, dorsal side up. a: Palps (pa) of Myriowenia sp. are innervated by two nerves (pn, red) originating in the dorsal part of the brain ring (br, grey). The lateral palp nerve (pn) is more prominent than the inner one. mc: medullary cord. b: Each main branch of the tentacle crown is innervated by two lateral located main nerves (pn). The remaining tissue is innervated by fine neurites (ne). blue: basal lamina of epidermis; grey neuropil of brain

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Frontiers in Zoology

ISSN: 1742-9994