Human physiology (Volume 2) . s only one calf at abirth, it is so large, according to Sir Everard Home,b that, whenmagnified, the structure can be made out. It is a mass of thin con-volutions, bearing a greater resemblance to those of the brain thanto any other organ. Its shape is irregularly oval, with a centralcavity, and in some animals, its substance is of a bright orange-colour, when first exposed. The corpora lutea are found to maketheir appearance immediately after puberty, and they continueto succeed each other, as the ova are expelled, till the periodarrives when impregnation can no l


Human physiology (Volume 2) . s only one calf at abirth, it is so large, according to Sir Everard Home,b that, whenmagnified, the structure can be made out. It is a mass of thin con-volutions, bearing a greater resemblance to those of the brain thanto any other organ. Its shape is irregularly oval, with a centralcavity, and in some animals, its substance is of a bright orange-colour, when first exposed. The corpora lutea are found to maketheir appearance immediately after puberty, and they continueto succeed each other, as the ova are expelled, till the periodarrives when impregnation can no longer be accomplished SirEverards theory, regarding these bodies, is, that they are Elandstovmed purposely for the production of ova, — and a similar view isenttrtamed by Seiler,c—that they exist previous to, and are uncon- * Laid, and Edinb. Monthly Journal of Med. Science, Dec. 1841 b Leo. on Comp. Anat. iii. 303. c i asEj un(] die Gebarmutter des Menschen, u. s. w., Dresd. 1832; and Stannius, FECUNDATIOM. 379 Fig. nected with, sexual intercourse,—and, when they have fulfilled theiroffice of forming ova, they are remov-ed hy absorption, whether the ovabe fecundated or not. Figures, 231, a and b, afford anexternal and internal view of a humanovary, that did not contain the ovum,from which a child had been deve-loped. It was taken immediatelyafter the child was born. The corpusluteum is nearly of the full size, aand b, Fig. 232, afford an externaland internal view of the ovarium, inwhich the impregnated ovum hadbeen formed. The latter figure ex-hibits how much the corpus luteumhad been broken down. In it wesee a new corpus luteum forming. From all these facts, then, we areperhaps justified in concluding withSir Everard Home,3 and , Saumarez,b Cuvier, andothers,0 that something resemblinga corpus luteum may be producedindependently even of sexual inter-course, by the mere excitement ofhigh carnal desire, during which itis probable, that the digitated e


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectphysiology, bookyear1