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How many neurons are in an earthworm brain?

Nicotinamide adenine dinucleotide phosphate

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Journal Article•DOI On the neurosecretory system of Cerebratulus marginatus (Heteronemertini). Stefano Bianchi 01 Jun 1969-General and Comparative Endocrinology 20 Citations	In certain characteristics the neurosecretory system of Cerebratulus may resemble that of the earthworm.
Journal Article•DOI The microscopic anatomy and ulrastructure of the nervous system in the earthworm (Lumbricus sp.) with emphasis on the relationship between glial cells and neurons Joe U. Levi, Ronald R. Cowden, George H. Collins - Show less +2 more 01 Aug 1966-The Journal of Comparative Neurology 37 Citations	A sequence of morphology was observed which suggests that glial cells in the earthworm transport material from the cord sheath to the neurons.
Journal Article•DOI Immunohistochemical analysis and 3D-reconstruction of the cephalic nervous system of Chaetognatha: insights into the evolution of an early bilaterian brain? Verena Rieger, Yvan Perez, Carsten H. G. Müller, Elisabeth Lipke, Andy Sombke, Bill S. Hansson, Steffen Harzsch - Show less +6 more 01 Feb 2010-Invertebrate Biology 14 Citations	Immunolocalization of a neuropeptide suggests the presence of an identifiable group of neurons associated with the brain of all species examined here.
Journal Article•DOI Crustacean cardioactive peptide-immunoreactive neurons in the hawkmoth Manduca sexta and changes in their immunoreactivity during postembryonic development Norman T. Davis, Uwe Homberg, Heinrich Dircksen, Richard B. Levine, John G. Hildebrand - Show less +4 more 22 Dec 1993-The Journal of Comparative Neurology 115 Citations	Many of the neurons identified here are comparable to crustacean cardioactive peptide‐immunoreactive cells described previously in locusts and the mealworm beetle.
Journal Article•DOI Visualization of nitric oxide production in the earthworm ventral nerve cord. Yoshiichiro Kitamura, Yuichi Naganoma, H. Horita, Noriko Tsuji, Ryosaku Shimizu, Hiroto Ogawa, Kotaro Oka - Show less +6 more 01 Jun 2001-Neuroscience Research 9 Citations	In conclusion, we successfully visualized NO in the earthworm VNC by clarifying both the distribution of NO-producible neurons and the endogenous NO production.

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