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The band itself was chiefly a coalescence of the xyphoid cartilages, surrounded by areolar tissue and skin. The "Orissa sisters," or Radica-Doddica, shown in Europe in 1893, were similar to the Siamese twins in conformation. They were born in Orissa, India, September, 1889, and were the result of the sixth pregnancy, the other five being normal.
There are no bones resting on each other, no synovia; but where the scapula has its largest range of movement there is a remarkable amount of areolar tissue, which renders movement easy.
In the Ephemerides of 1690 Konig gives a description of two Swiss sisters born in 1689 and united belly to belly, who were separated by means of a ligature and the operation afterward completed by an instrument. The constricting band was formed by a coalition of the xiphoid cartilages and the umbilical vessels, surrounded by areolar tissue and covered with skin.
In almost every part of the body the ordinary areolar tissue contains a variable quantity of adipose or fatty tissue. Examined by the microscope, the fat cells consist of a number of minute sacs of exceedingly delicate, structureless membrane filled with oil. This is liquid in life, but becomes solidified after death.
If operated severely, and higher up, great exudation occurs, which spreads upward, invades the areolar tissue round the rectum and other pelvic organs, and death soon puts an end to the animal's excruciating suffering.
The whole central area beneath the scapula and humerus not occupied by muscular attachment, is filled with this easy-moving, apparently gaseously distended, crepitant, areolar tissue over which the fore legs glide on the chest wall as freely as if the parts were a large, well lubricated joint."
It was now for the first time that a true general anatomy became possible. As early as 1816 Treviranus had attempted to resolve the tissues, of which Bichat had admitted no less than twenty-one, into their simple microscopic elements. How could such an attempt succeed, Henle well asks, at a time when the most extensively diffused of all the tissues, the areolar, was not at all understood?
It is these fibers which give elasticity to the skin and to the coats of the arteries. In the skin and fasciæ, the yellow elastic is found mixed with white fibrous and areolar tissues. It does not yield gelatine on boiling, and the cells are, if any, few. Yellow Elastic Tissue. Areolar or Cellular Tissue.
This is the long staple textile substance of the body. It is to the organism what cotton is pretended to be to our Southern States. It pervades the whole animal fabric as areolar tissue, which is the universal packing and wrapping material. It forms the ligaments which bind the whole frame-work together. It furnishes the sinews, which are the channels of power. It enfolds every muscle.
Throughout this feltwork structure which gradually passes into areolar tissue are numerous muscular fibers, as about the hair-follicles and the oil glands. When these tiny muscles contract from cold or by mental emotion, the follicles project upon the surface, producing what is called "goose flesh."
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