A directory for the dissection of the human body / by John Cleland.

  • Cleland, John, 1835-1924.
Date:
1876
Catalogue details

Licence: Public Domain Mark

Credit: A directory for the dissection of the human body / by 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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    V THE USB OF INSTRUMENTS. 3 liglitly turned aside with the closed forceps, without being held between the teeth of the instrument. The scalpel ought never to be held with the handle in the palm of the hand and the forefinger on the back of the blade, like a bistoury, save only in making incisions. It is usually held like a pen between the forefinger and thumb, while the ex- tremity of the middle fingers furnishes a slight sup- port on which it may be turned so as to direct the cutting edge towards or away from the dissector at will. The management of the scalpel varies a littlcj according as it is used for the dissection of large muscles or vessels and nerves. In laying bare a large muscle, such as the superficial muscles of the back, buttock, breast and abdomen, it takes as little time to make the dissection clean and display the structures properly as to bring the muscles into view in a less successful fashion, with the fascia left ' adherent in patches, and the cutaneous nerves de- stroyed. So far as the display of the muscular '1 fibres is concerned, the following are the directions to be attended to :— 1. Having raised a small portion ©f the fascia or integuments to be removed, grasp them firmly be- tween the fingers and thumb, and pull on them so as to make them tense. It will then be seen that at the bottom of the furrow between the muscle and opaque fascia there is a stretched film of semitrans- parent connective tissue, which must be all removed along with the fascia. 2. Place, therefore, the point of the scalpel where f the film and the muscle touch. Then keeping the i B 2 °