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A Directory for the Dissection of the Human Body
A Directory for the Dissection of the Human Body Author:John Cleland 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: 42 DISSECTION OF THE LOWER LIMB. 1. TheGluteal Region.—The subject being placed on its face, with blocks under the pelvis, an incision is to be made from t... more »he middle line outwards, along the crest of the ilium ; and another, commencing at the same point, is to be carried down to the lower end of the sacrum, then outwards, so as to reach a point about six inches below the great trochanter. The largest cutaneous nerves of this region cross down over the crest of the ilium and will be found the more easily by attending to the circumstance that while the adipose tissue on the back is continued down in an uninterrupted sheet over the gluteus maximus, a distinct deeper layer of fat fills up the hollow between the crest of the ilium and the upper border of that muscle; and it is between the two layers that the nerves descend. The nerves descending over the crest of the ilium are :—Two or three branches from posterior divisions of lumbar nerves, and in front of them the lateral branches of the last dorsal and ilio-hypogastric nerves. Still further forwards, below the anterior superior spine of the ilium, may be found the posterior branch of the external cutaneous nerve of the thigh, which, however, does See footnote, p. 10. not encroach much on the gluteal region. Turning npwards round the inferior border of the glutens maximns muscle are some branches of the small sciatic nerve, which may be sought for by cutting down on the lower border of the muscle, or may be more conveniently found when the subcutaneous fat and fascia have been reflected as far as that border; and piercing the gluteus maximus, close to its origin, are some small branches from the posterior divisions of the upper sacral nerves. The adipose tissue is now to be removed, so as to lay bare the strong fascia la...« less