A probationary surgical essay on carotid aneurism : submitted ... to the examination of the Royal College of Surgeons of Edinburgh ... / by Thomas Inglis.

Date:
1817
Catalogue details

Licence: Public Domain Mark

Credit: A probationary surgical essay on carotid aneurism : submitted ... to the examination of the Royal College of Surgeons of Edinburgh ... / by Thomas Inglis. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    namely, the internal or serous, the middle or muscular, and the external or cellular. The internal coat is very thin and transpa- rent ; it is of a close texture, and is highly po- lished on its inner surface; it is elastic, and in its longitudinal direction is strong, but it is “ so weak in the circular as to be very easily torn by the slightest force in that di- rection.”* The middle coat, called by Bichat “ le tissu arteriel, is composed of several layers or stra- ta of muscular fibres which surround the ar- teiy. These fibres vary in colour in different subjects, and at different periods of life 5 in youth they are of a pale red colour, but in age they are of a yellowish hue; they run in a circular direction, and are easily lacerated. The cellular coat is composed of very fine threads, which connect it to the neighbour-