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The fifth ventricle


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:

  1. (1)

    The appearance of a ventricle in the conus of the dog.

  2. (2)

    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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Correspondence to Patrick Fitzgerald M.B., M.Ch., B.Sc..

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Fitzgerald, P. The fifth ventricle. Ir. J. Med. Sc. 42, 133–136 (1967).

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