A Manual of Anatomy Author:John Shaw Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: absurd, but, as they arc always mentioned, we must describe them.—Processus Vermiformis vermirorm . . i ss i . Process. Superior, is the name .given to ... more »the little eminence oh the highest portion of the cerebellum, because it has some resemblance to a worm coiled up;—this is the same part which we were obliged to hold aside, or cut away, in showing the nates and testes, and valvula cere- bri. When we look at the lateral parts of the base of the cerebellum, upon the side of the sulcus which corresponds to the falx cerebelli, (and which has been removed in cutting the occipital bone,) two little convolutions will be seen, which, from some faint resemblance they also have to worms, have been called the InFerior VERMIFORM PROCESSES. The method just pointed out, is the best manner of giving an accurate notion of the relation of the fourth ventricle to the other parts of the brain; but if we object to it, in consequence of the injury to the scull, by cutting out the portion of the occipital bone, we must raise the base of the brain from the scull, before we can examine the parts in the fourth ventricle. In doing this, there are several points of anatomy which should be noticed, previous to the examination of the ventricle. The scull should be allowed to fall back a . little, and then, with the handle of the knife, we should lift part of the anterior lobe from its position on the frontal bone. In doing so, in a very fresh brain, we may see the Olfactory Kerr. nerve passing into the cribriform plate of the ethmoid bone ; but this nerve is so soft, that, in general, it is destroyed before we reach this stage of the dissection. In turning the lobes further back, the Optic Nerves, with the Ca RoTe o Arteries rising by the side of them, will be distinctly seen. These nerves s...« less