. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. 58 ANIMAL PHYSIOLOGY. {tunica fibrosa), in close relation to -which is a layer of capillary blood-vessels {tunica vasculosa), the two together forming the. Fig. 62.—Sagittal section of the ovary of an adult bitcli (after Waldeyer). o. e, ovarian epi- thelium ; o. <, ovarian tubes ; , younger follicles ; , older follicle ; d. p, discus pro- ligerus, with the ovum ; e, epithelium of a second ovum in the same follicle ; /. c, fibrous coat of
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. 58 ANIMAL PHYSIOLOGY. {tunica fibrosa), in close relation to -which is a layer of capillary blood-vessels {tunica vasculosa), the two together forming the. Fig. 62.—Sagittal section of the ovary of an adult bitcli (after Waldeyer). o. e, ovarian epi- thelium ; o. <, ovarian tubes ; , younger follicles ; , older follicle ; d. p, discus pro- ligerus, with the ovum ; e, epithelium of a second ovum in the same follicle ; /. c, fibrous coat of the follicle ; p. c, proper coat of the follicle ; e. /, epithelium of the foUicle (mem- brana granulosa); a. /, collapsed atrophied follicle ; b. v, blood-vessels ; c. (, cell-tubes of the parovarium, divided longitudinally and transversely ; t. d, tubular depression of the ovarian epithelium, in the tissue of the ovary ; b. e, beginning of the ovarian epithelium, close to the lower border of the ovary. general covering {tunica propria) for the more delicate and im- portant cells within. Lining the tunic is a layer of small, some- what cubical cells {membrana granulosa), which at one part invest the ovum several layers deep {discus proligerus), while the remainder of the space is filled by a fluid {liquor folliculi) probably either secreted by the cells themselves, or resulting from the disintegration of some of them, or Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mills, Wesley, 1847-1915. New York, D. Appleton
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