Obstetrics : the science and the art . quite uncovered by the dissection, which has laid theorgan open to view. To the right and upwards from this point isseen an emptied Graafian cell r, in which e is the outer surface of thewhole cell. At v is the point of dehiscence, through which the eggescaped. This Graafian cell consisted of two coats or membranes, onecontained within the other. The broken lacinise of the double ovisacare seen at the upper end, near the margin of dehiscence, where theyarc marked g and i. These two coats arc better represented in thefollicle at the upper and left extremit
Obstetrics : the science and the art . quite uncovered by the dissection, which has laid theorgan open to view. To the right and upwards from this point isseen an emptied Graafian cell r, in which e is the outer surface of thewhole cell. At v is the point of dehiscence, through which the eggescaped. This Graafian cell consisted of two coats or membranes, onecontained within the other. The broken lacinise of the double ovisacare seen at the upper end, near the margin of dehiscence, where theyarc marked g and i. These two coats arc better represented in thefollicle at the upper and left extremity of the cut—in which theirfloating and distinct membranes are seen at e and at /, whereas g indi-cates the granular deposits upon the inside of the follicle, which iscalled the tunica granulosa, or granular membrane. This granularmembrane is so little tenacious that upon puncturing and compressinga cell, it flows out with the water, and appears upon the microscopeas a collection of innumerable grains, that arc probably THE OVARIES. 129 Very near the superficial segment of this ovarian ovisac is seen theovulum inclosed within its proligerous cumulus. In order that the Student may here have a more complete idthe ovary, 1 repeat the figure 45 of the hu-man egg^ taken from Kudolph Ilistor. Generaiionis, in whichis seen the pellucid ring, surrounding andinclosing a quantity of yelk corpuscles,among which, near the top, rests a trans-parent vesicle with a dark spot upon pellucid ring is the zona pellucida ofthe cgg^ outside of which is a quantity ofgranulous membrane that always comesout of the Graafian follicle sticking to thepellucid zone. It is necessary to remark that this figure is greatly magnified, for a very strong sight is requiredto enable any one to see without a lens the egglet, whose diameter isbut the twentieth of a Paris line. The grains inside of the pellucidzone are grains of yelk—or vitellary corpuscles. They are yelk, true
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Keywords: ., boo, bookcentury1800, booksubjectmidwifery, booksubjectobstetrics
