Guide to the method of dissection for the use of the students of practical anatomy in the University of Glasgow / by Allen Thomson and John Cleland.

  • Thomson, Allen, 1809-1884.
Date:
1861
Catalogue details

Licence: Public Domain Mark

Credit: Guide to the method of dissection for the use of the students of practical anatomy in the University of Glasgow / by Allen Thomson and John Cleland. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    muscles; the small occipital nerve, wliicli passes upwards along tlie posterior border of tlie sternomastoid muscle; and, beneatli these, the occipital pai-t of the occipito-frontalis muscle. Behind the ear are the ret rah ens auiiculam muscle and the posterior auricular artery and nerve; above the ear is the attollens auriculam muscle; and in front of the ear the attrahens auriculam muscle connected with the attollens, the temporal artery and vein, the small tem- poral branch of the third division of the fifth nerve, and the superior bi'anches of the facial nerve. Passing upwards on the forehead, are the frontal part of the occipito-frontalis mviscle, the frontal vein, the supraorbital and frontal artei-ies, and the supra- orbital and supratrochlear nerves. 2. Interior of the Cranium and Brain.—During the third and fourth days the brain and its membranes are to be removed and studied, and the interior of the base of the skull dissected to show the sinuses, bloodvessels, and nerves; and, if there is time (as may be the case, should the head have been previously opened), the orbit may be examined from above. To remove the calvarium, the temporal aponeurosis and upper part of the temporal muscle having been dissected, let the scalpel be can-ied round the cranium from a point a little above the occipital protuberance, so as to pass across the forehead at about an inch above the orbits; and having cleared a small portion of the bone on the circle so made, let the external table of the skull be sawn through, leaving the inner table undivided. Let the inner table be cracked completely round by a few smart strokes of the chisel and mallet, and the calvarium may then be pulled away from the dura mater which lines it. The superficial aspect. of the dura mater and the superior longitudinal sinus having been examined, the dura mater is to be divided on a level with the sawn edge of the skull, excepting where it touches the middle line ; and the arachnoid membrane and pia matter may be examined, as well as the cerebral veins entenng the superior longitudinal sinus. The falx cerebri is then to be separated from its attachment to the crista galli and thrown backwards. It will now be in the dissector's option to remove the brain at once from the body, or to examine it in situ as far as the ventricles.