. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. of a male, each lateral penis and its urethra is a copart-nership organ, one half being furnished by each is also true of the scrotum, testes, etc. The sameplan of arrangement exists in the case of females. Inthe ischiopagi there is but one umbilicus and one funis,which is situated in the centre of the united vertebral columns are contiguous or right os innominatum of one body joins the left ofthe other, forming a lateral symph
. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. of a male, each lateral penis and its urethra is a copart-nership organ, one half being furnished by each is also true of the scrotum, testes, etc. The sameplan of arrangement exists in the case of females. Inthe ischiopagi there is but one umbilicus and one funis,which is situated in the centre of the united vertebral columns are contiguous or right os innominatum of one body joins the left ofthe other, forming a lateral symphysis pubis, and viceversa on the opposite side. By this arrangement the pel-vic bones form a single threat ring, or basin, as seen inFig. 3851. To separate the two bodies of a symmetrical ischiopa-gus and give each its own parts, an incision should bemade on a transverse line, through the central umbilicusand abdomen, bisecting the external and internal genitals,the symphyses of the pubes, the rectums, and the bladder,which is common to both. In a perfectly symmetricaland completely developed ischiopagus, there is neither re-. Fig. 3851.—Ischiopagus (Pelvis)(Palfyn.) » dundancy nor deficiency in the structure of any portionof the two component bodies. The non-symmetrical forms are divided into arbitraryspecies according to the number of pelvic extremities,their fusion, etc., viz.: I tetrapus, four; I. tripus, three ;/. dipus, two limbs. In a series of cases of ischiopagiwe meet with many of the malformations found in singlebodies, as acrania, hare-lip, atresia of ureters, urethra,and rectum ; sympodia, etc. It is chiefly owing to thesedefects that they so rarely live any considerable lengthof time. Most of them are born prematurely, and nearlyall of them die before the end of the first week. Thedelivery in most cases is natural and unattended by dan-ger to mother or offspring. They are comparativelyrare, only about twenty human casts are on record. Asfar as ascertained, they
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmedicine, bookyear188
