Volume 1

The anatomy of the human body.

  • Bell, John, 1763-1820.
Date:
1797
Catalogue details

Licence: Public Domain Mark

Credit: The anatomy of the human body. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    marks which we take of the Ikull, record the en- trance of arteries; the exit of veins and nerves. ; the places and ufes of thofe mufcles which move the jaws, the throat, the fpine. Indeed, in all the human body, there is not found fo complicated and difficult a ftudy, as this anatomy of the head ; and if this fatiguing ftu- dy can be at all relieved, it mud be by firft eftablifh- ing a very regular and orderly demonstration of the. Ikull. For this end, we duTinguiih the face, where the ir- regular furface is compofed of many fmall bones, from; the cranium or Ikull-cap, where a few broad and flat ihaped bones form the covering of the brain. It is thefe chiefly which inclofe and defend the brain, which are expofed to injuries, and are the fubjecl of operation. In is thefe alfo that tranfmit the nerves. So that the cranium is equally the object of attention with the anatomift and with the furgeon. All the bones of the cranium are of a flattened form, confifting of two tables, and an intermediate di- ploe, which anfvvers to the cancelli, of other bones. The tables of the ikull are two flat and even plates of bone : the external is thought to be thicker, more fpongy, lefs ealily broken ; the thinner table, again, is denfe, thin and brittle^ very eafily broken, and isfome- times fractured, while the external table remains en- tire : Thence it is named tabula vitrea, or the glaliy ta- ble. Thefe tables are parted from each other by the diftance of a few lines*; and this fpace is filled up with the * In anatomy there is occafiou in almoit every defcription, for a feale of fmaller parts. The French divide their inch into twelve parts, each