. Commentaries on the surgery of the war in Portugal, Spain, France, and the Netherlands, from the battle of Roliça, in 1808, to that of Waterloo, in 1815; with additions relating to those in the Crimea in 1854-55, showing the improvements made during and since that period in the great art and science of surgery on all the subjects to which they relate. Revised to October, 1855. o into two layers, the inner, marked 5, and theouter, marked 6; number 5 being composed more of elasticfibers: number 6 more of areolar fibers, by which tissue, ina less condensed state, the arteries of the extremities
. Commentaries on the surgery of the war in Portugal, Spain, France, and the Netherlands, from the battle of Roliça, in 1808, to that of Waterloo, in 1815; with additions relating to those in the Crimea in 1854-55, showing the improvements made during and since that period in the great art and science of surgery on all the subjects to which they relate. Revised to October, 1855. o into two layers, the inner, marked 5, and theouter, marked 6; number 5 being composed more of elasticfibers: number 6 more of areolar fibers, by which tissue, ina less condensed state, the arteries of the extremities areattached to their sheaths. Such may be considered to be STRUCTURE OP ARTERIES. Ill the general composition of a large artery, each particularstructure remaining to be examined. 1*74. If a small portion of the inner coat of an artery begently scraped with a knife, or if the inside of the cheek betreated in a similar manner, a little white soft substance isbrought away on it, called epithelium, a name given to it byRuysch, from the delicate layer of epidermis investing thefemale nipple, i-c, upon, OrjXrj a nipple. The epithelium ofthe human body is divided into three kinds by microscopists—the tesselated, pavement, or scaly; the cylindrical, orconical; and the spheroidal, or glandular. The tesselated,as it exists in arteries, is represented in diagram No. 1, in three different stages—in the young person, in middle age,and in the very old person; one stage gradually degener-ating or changing into the other, at each different period oflife. It is composed, of a single layer of nucleated cells, ofa flat, oval, round, hexagonal, or polygonal form, and aboutTToo of ^^ i^^^^ ^^^ diameter, the nucleus in each cell con-taining within itself one or more nucleoli, and even severalpaler granules. The epithelium has a thickness propor-tioned to the friction or pressure to which it is exposed,particularly when covering the skin. In the arteries of theyoung, and in the mammalia
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishe, booksubjectsurgery
