The Edinburgh dissector, or, System of practical anatomy : for the use of students in the dissecting room / by a Fellow of the College of Surgeons of Edinburgh.

Date:
1837
Catalogue details

Licence: Public Domain Mark

Credit: The Edinburgh dissector, or, System of practical anatomy : for the use of students in the dissecting room / by a Fellow of the College of Surgeons of Edinburgh. Source: Wellcome Collection.

Provider: This material has been provided by the Woodruff Health Sciences Center Library at Emory University, through the Medical Heritage Library. The original may be consulted at the Woodruff Health Sciences Center Library, Emory University.

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    nearly cubical, composed almost entirely of thin lami- nae, es;tremely fragile, though hard. The laminae are placed in a variety of ways, forming many cellules, all of which are lined by a continuation of the pituitary membrane, communicating with the nostrils on the one hand, and with the sphenoidal cells, by the apertura Bertini or oculus Morgagni, on the other. The fully macerated bone is extremely light, and as we have re- marked, so fragile, as to give way under the most deli- cate touch, so that the student seldom has the satisfac- tion of having an ethmoid in his hand. We are satisfied, indeed, that many a surgeon has passed the public boards without having ever touched the ethmoid bone. One part is of extreme density, viz. the crista galli; and as the bone is really a very important one, we recom- mend the student to follow our plan. We drill a small hole through the crista galli, and twist a portion of brass wire through it, of sufficient strength to support the bone. We have by this means had the same eth- moid in frequent use for four or five years, and it is still entire! The sphenoidal or posterior aspect pre- sents, in the middle, \hQ perpendicular plate, extremely thin and retiring in this aspect; superiorly, upon a very reduced scale, a surfac'e precisely similar to those by which the sphenoid and occipital were connected to each other, the continuation, in fact, of the system of the bodies of the vertebrae. A corresponding surface surmounts the ethmoidal ridge (52) of the sphe- noid; an intervening cartilage existed in the young person. The perpendicular plate further meets the sphenoidal ridge, and lastly articulates with the vomer, and thus forms part of the septum narium. A deep narrow groove, the ethmoid groove, separates the per- pendicular plate on each side from a more or less con- vex and very irregular surface, the ethmoid cells, being left open by the removal of the sphenoid above, the palate below, and the turbinated bones of Bertin (52) in the middle. Mesially, and looking towards the ver- tical plate, these irregular surfaces present various in- teresting objects for examination ; superiorly, there is the superior turbinated hone (concha superior], a small thin plate bent on itself from above downwards • be-