. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. Fig. 383-!.—Sympodia. (Otto.) 15 the names of parts would imply deficiency of the same. Amelia, or want of all the extremities, is quite rare(Fig. 3838). Instances ofentire absence of both up-per or of both lower limitsare less rare, though notcommon. The first rudi-ments of limbs appear in theembryo about the beginningof the second month,being merely slight emi-nences or embryonicbuds. An arrest of de-velopment at this stageof evolution would pro-duce the anomal
. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. Fig. 383-!.—Sympodia. (Otto.) 15 the names of parts would imply deficiency of the same. Amelia, or want of all the extremities, is quite rare(Fig. 3838). Instances ofentire absence of both up-per or of both lower limitsare less rare, though notcommon. The first rudi-ments of limbs appear in theembryo about the beginningof the second month,being merely slight emi-nences or embryonicbuds. An arrest of de-velopment at this stageof evolution would pro-duce the anomalies un-der consideration. Adultexamples of absence ofone or more limbs areamong the stock won-ders of side-shows dime museums. The malformation knownas pltocomelia, or seal-limbs,results from arrested or ¥•?? much retarded development E; * of the bones of the limbs, V •? • ; which are left so short, i\,--: curved, and rudimentary [V 7 that they are concealed with- I in the shoulders and hips. fa The hands and feet are gm- FlG ;.-SvndactyiuS. erally in these cases full (Otto.). ant 8 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. sized and well formed. Fig. 3839, from Vrolik, repre-sents a good specimen of this , or fcetuses with the head entirely absent. This term should notbe confounded withacrania, in which thereis an absence of the cra-nial walls, with more
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmedicine, bookyear188
