The student's guide to surgical anatomy : being a description of the most important surgical regions of the human body and intended as an introduction to operative surgery / by Edward Bellamy.

  • Bellamy, Mr. (Edward)
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: The student's guide to surgical anatomy : being a description of the most important surgical regions of the human body and intended as an introduction to operative surgery / by Edward Bellamy. Source: Wellcome Collection.

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    9 backwards to tlie occipital tuberosity; a second at right angles to it across the scalp from ear to ear. Care must be taken that the depth of the first incisions extends no further than the hair bulbs. The flaps so formed are next to be very carefully reflected for- wards and backwards. The integument is tolerably thick, smooth, and some- what uneven in surface. It is very rich in sebaceous follicles, and these, by the inspissation of their con- tents and closure of their excretory ducts, constitute the encysted tumours or wens often met with in this region. It is highly vascular, and is frequently the seat of aneurisms by anastomosis, erectile tumours, &c., and has immediately subjacent a dense lamellated cellular tissue, containing a little nodulated fat and the hair bulbs, adhering firmly to the underlying tendinous expansion of the occipito-frontalis muscle or epicranial aponeurosis. This aponeurosis is ex- tremely thin over the vertex of the cranium, but very thick in the temporal region, and freely moveable. Effusions of blood may take place either above or below this structure in the loose areolar tissue separating it from the pericranium. Thus a black eye can be produced by a blow on the back of the head, by the gravitation of the blood downwards and forwards into the loose subcutaneous tissue of the forehead and eyelids. In phlegmonous erysipelas of the scalp the pus burrows under this aponeurosis, so that free in- cisions down to the bone and counter-openings are necessary. Beneath this cellular layer is the peri- cranium or external periosteum, which is much stronger in the child than in the adult; it is fre- quently the seat of periostitis and of nodes. The arteries supplying this region are—in front,