File:PSM V10 D045 Nervous system of the cuttle fish.jpg

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Summary

Description
English: “Nervous system of the common cuttle-fish (Sepia officinalis)”
Explanation:
1 = “large bilobed ganglion” of the “supra-oesophagal ganglionic mass”
2 = lobes of the “optic ganglion”, connected to the “supra-oesophagal ganglionic mass”
3 = not used in this diagram
4 = “sub-oesophagal ganglionic mass”
5 = cerebro-buccal connectives
6 = large nerves “connected with the feet and tentacles” projecting from the anterior part of the “sub-oesophagal ganglionic mass”
7 = “pharyngeal ganglion”, connected to the “large bilobed ganglion” of the “supra-oesophagal ganglionic mass” (via 5?)
8, 9, 10, 11, 12 = not used in this diagram
13, 14 = large nerves connected to the “branchiae and other viscera as well as to the mantle” going off the posterior part of the “sub-oesophagal ganglionic mass”
a = mantle nerves coming off the right stellate ganglion
b = right stellate ganglion
c = branchial nerves/ ganglia
d = left stellate ganglion
e = fin connectives
f = stellate connectives (?)
g = fin nerves
All other numbers and letters in the drawing are not explained in the accompanied text (pp. 34–36 in the source).
Date
Source Nature of the Invertebrate Brain. The Popular Science Monthly 10:27–38 (fig. 13, p. 35)
Author Charlton Bastian

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