Brain as an organ of mind / by H. Charlton Bastian.

  • Bastian, H. Charlton.
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: Brain as an organ of mind / by H. Charlton Bastian. Source: Wellcome Collection.

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    the two pairs of gan* glia of Eolis. Thus median compound ganglia (fig. 18, g) are formed, connected with one another by single, or it may be by double {e, h) com- missures. The ter- minal double group (a) represents the brain of the animal, and this is probably capable of receiving stimuli by some fibres from the sensory por- tion of each single or double ganglion throughout the body of the Insect. It can probably also transmit motor stimuli along other commissural fibres to each motor division of the same body ganglia. In the Grasshopper the brain is not more than three or four times as large as one of the compound gan- „ . c ^ ^ ^ Fig. 18.—Nervous system of the Great Green glia in communication Grasshopper (Newport). A, brain; B, optic nerves; D, antennal nerves; d, motor nerve of mandible from sub-cesophageal ganglion; g, first thoracic gan- glion, connected to the second, as the second is to the third, by two commissures. E 2 with the legs and wings. In Vertebrate Ani-