File:The science and art of midwifery (1897) (14783136223).jpg

Identifier: scienidw00lusk (find matches)
Title: The science and art of midwifery
Year: 1897 (1890s)
Authors: Lusk, William Thompson, 1838-1897
Subjects: Obstetrics Women Pathology
Publisher: New York, D. Appleton
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

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s, and preparatory to the pas-sage of the child at the time oflabor. This secretion, by render-ing the parts moist and slippery,serves to protect the mucoussurfaces from mechanical injury.An abundant secretion may like-wise be caused by erotic dreams,or, in fact, by any form of sexualexcitement. They are more de-veloped in young persons thanin those of middle life, and inold age they seem in some casesto disappear altogether. The orificium vagina differsgreatly, both as to size and ap-pearance, in virgins, in womenaccustomed to sexual intercourse,and in those who have bornechildren. In virgins (vide Fig. 1) theanterior extremity of the vaginaterminates in a thin membrane,termed the hymen, which pro-jects between the labia minoraThe mucous membrane of theinner surface of the hymen isContinuous with that of the vagina; the outer surface is covered byan extension Of the mUCOUS Covering of the vulva. The space between the two uiueous surfaces contains blood-vessels, connective tissue, and
Text Appearing After Image:
Vulva of a woman who lias borne chil-dren, i. labium maiua; 2, fourchette : .i. la-bium minus; i. Inferior laj er passing beneaththe clitoris ; 5, upper layer forming the pre-puce ; *». clitoris ; ,. prepuce : 8, meatus un -three : •. vestibule : 10. orifice of the vagina,showing Ibwer portion of the vaginal canal ;ii. orifice of the gland of Duverney ; IS, monaVeneris. (SappeyO FEMALE OEGANS OF GENERATION. 7 a few muscular fibers derived from the vaginal walls.* The vaginalorifice, which is therefore in virgins identical with that of the hymen,has usually a crescentic shape, with its concave border looking towardthe urethral orifice, so that a small opening is left anteri< rly for theescape of the menstrual fluid. There are, however, a number of otherless Common varieties, of which the following are the most important :1. The hymen annularis, with a small central opening. 2. The hymencribriformis, with a number of small openings. 3. The hymen imper-foratus, which completely occ

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