UTEROMETER 



1584 



UTERUS 



Uterometer {u-ter-om r -et-er\ \_Uterus, uterus ; fierpov, 

 measure]. An instrument used to accurately deter- 

 mine the depth and position of the uterus and to 

 locate and estimate the dimensions of structures therein 

 contained. 



Utero-ovarian (u-ter-o-o-va'-re-ati) [uterus, uterus; 

 ovarium, ovary]. Pertaining conjointly to the uterus 

 and the ovaries. 



Uteropexia, Uteropexy {u-ter-o- 

 peks'-e-ah , u / - ter • o -peks - e) . See 

 Hysteropexia. 



Uteroscope (u f - ter - o - skop) [uterus, 

 uterus; gkotteIv, to inspect]. A 

 uterine speculum. 



Uterotome (it f - ter-o- torn) [uterus, 

 uterus; To/iq, a cutting]. A cutting 

 instrument used in uterotomy. See 

 Hysterotome. 



Uterotomy (ii-ter-ot'-o-me) [uterus, 

 uterus; tejivelv, to cut]. Incision 

 into the uterus. See Hysterotomy. 



Uterus (u'-ter-us) [L. : gen., Uteri']. 

 The womb ; the organ of gestation ; 

 it receives the fecundated ovum in 

 its cavity, retaining and supporting it 

 during the development of the fetus, 

 and becoming the principal agent in its expulsion 

 during parturition. The uterus in the non-gravid 

 state in the human subject is a hollow, pear-shaped, 

 muscular organ, three inches long, two inches wide, 

 and one inch thick, and is divided into three por- 

 tions, the fundus, the body, and the cervix. The 

 fundus is the upper and broad portion ; the body 

 gradually narrows to the neck, which is the contracted 

 portion. The mesal orifice, os uteri, communicates 

 with the vagina. The ental surface is covered with 

 mucosa continuous with that of the vagina. The ectal 

 surface of the fundus and body is covered with perito- 

 neum. The whole organ is suspended in the pelvis 

 by means of the broad ligament. Its cavity measures 

 two and a half inches in length. The Fallopian tubes 

 enter one on either side of the fundus at the cornua of 

 the organ. U., Anteflexion of. See Anteflexion. 

 U., Anteversion of. See Anteversion. U., Arbor 

 vitae of, branch-like elevation of the mucous membrane 

 of the cervix. U. bicornis, when, from arrested de- 

 velopment, the uterus is divided into two horns or 

 compartments. U., Body of, that part above the 

 isthmus. U., Cervix of, that part below the isthmus. 

 U., Columns of, the ridges or elevations of the mu- 

 cous membrane of the cervix from which extend the 

 branches that with three columnar central axes are called 

 the arbor vitre. U., Contraction of, the intermittent 

 contractile action of the uterus whereby the fetus is 

 expelled. U. cordiformis, an arrest of development, 

 as a result of which the uterus is heart-shaped, or with 

 a depression in the fundus. U., Corpus of. See 

 (/., Body of. U. duplex, a double uterus from an 

 arrest of development. U., Fundus of, the portion 

 above a line drawn from one oviduct to the other. U., 

 Gravid, a uterus containing a fecundated ovum. U., 

 Hour-glass Contraction of, the formation of two 

 distinct cavities of the body and neck, the narrowed 

 internal os marking the boundary between them. U., 

 Impregnated. See U. , Gravid. U., Incarceration 

 of, strangulation by pressure or constriction. U., In- 

 ertia of, deficiency of uterine contractions in labor. 

 U., Infantile, a uterus normally formed, but arrested 

 in development. U., Inversion of, the organ is 

 "upside down, and wrong-side out." U., Involution 

 of, the process whereby the uterus is reduced to its 

 normal size and weight after labor. U., Isthmus of, 



a slight depression or constriction upon fhe ectal sur- 

 face of the uterus separating the body from the cervix. 

 U.masculinus, the little passage formed by the sinus 

 pocularis in the substance of the prostate. It is so 

 called from its resemblance in structure to the female 

 uterus. See Prostatic Vesicle. U., Neck of, same as 

 U., Cervix of. U., One-horned, an arrest of devel- 



w 



Dorsal Aspect of Female 1 Internal Genitalia. 



Body of uterus. 2,2. Ovaries. 3. Left oviduct. 4. Fimbriated extremity of 

 oviduct. 5, 5. Broad ligaments. 6. Ventral vaginal cul-de-sac. 



opment resulting in a uterus composed of a single 

 lateral half, usually with but one oviduct. Uteri, Os 

 Externum, the external mouth or opening of the uterus 

 into the vagina. U., Os Internum, the internal an- 

 atomic limit between the body and the cervix of the 

 uterus. Plicae palmatae, the radiate branchings of 

 the arbor vitae from the central axis. U., Procidentia 

 of, protrusion of the uterus from the vulvar orifice. 



; R A M M A i 

 PR ESE NT ATI 

 T H K C HAN 



positi on - 

 Uterus di 



G EST ATI O N.— The 



numerals im 

 weeks the height ot 

 tlu- fundus 11 



italic figures indicate respectively, also in week 

 dominal enlargement and position ol cervb 

 Schultze.) 



U., Prolapse of, falling of the uterus, but without 

 protruding from the vulvar orifice. U., Puerperal 

 Atrophy of, the rare condition of super involution of 

 the uterus produced when puerperal involution sn>es 

 further than to restore the uterus to the size thai n ■ 

 before delivery. The organ may become infanti 



