A comparison has been made between the central canal in the conus medullaris of a human and that of a dog. A new staining technique (Falg-Bielschowsky) was employed.
In both species the central canal terminated before the tip of the conus was reached.
The essential differences were:
The appearance of a ventricle in the conus of the dog.
The central canal in the dog tended to approach the dorsal surface of the cord but did not actually reach it.
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