. The brain as an organ of mind. Brain; Thought and thinking; Brain. Chap. II.] A NERVOUS SYSTEM. 51. 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 divisi
. The brain as an organ of mind. Brain; Thought and thinking; Brain. Chap. II.] A NERVOUS SYSTEM. 51. 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 s^an- -^ ,„ ^, ^ c ^. r. ^ n ^ ^ ®_ Fig. is.—^erTous system of tlie Great Green glia in communication Grasshopper (Newport). A, brain; B, optic nerves; w*i-V» fV> 1 1 "^' ^^tennal nerves; d, motor nerve of mandible \MLLl ine i-^i-j" anCl from sub-cesophagealganglion; g', first thoracic gan- winSfS. glion, connected to the second, as the second is to ^ ^ . the third, by two commissures. In Vei*tebrate Am-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bastian, H. Charlton. N. Y. , Appleton
Size: 998px × 2503px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectbrain, booksubjecttho
