American Journal of Obstetrics & GynecologyFARINE D, JAFFA A, ROSENN B, et al.: The physiology of the cervix in labor-the effect of individual contractions. Am J Obstet Gyne- col. 2004; 191(suppl 6): 670. Abstract 669.Farine D, Jaffa A, Rosen B, Kreiser D, Schiff E, Kiss S, ...
Changes in the cervix in late pregnancy depend largely on uterine contractibility. Dilation of the cervix permits passage of the fetus. This dilatation results from uterine contractions. During pregnancy the cervix resists the tendency of uterine contractions to cause dilatation; at the onset of ...
Complications of Childbirth Birth often cannot proceed normally because of a defect of the cervix or weak uterine contractions; breech births, in which the feet or buttocks emerge first, and transverse births, in which the child is positioned across the uterus, usually require obstetrical intervention...
Physiology of parturition 来自 Elsevier 喜欢 0 阅读量: 26 作者: LM Hefferman 摘要: A normal course of parturition requires both softening and dilatation of the cervix. Cervical softening already begins during late gestation under the influence of relaxin and/or oestrogens and occurs more rapidly ...
This chapter reviews the physiology of ejaculated spermatozoa as they pass through the natural environment of the female genital tract. The actual physiologic processes involved in the deposition of semen in the vagina and its migration through the cervix and cervical mucus have been reported elsewhere...
Step 6 of 6 Hence, the correct option is (e) Contractions of the uterus push the fetus against the cervix, which triggers release of oxytocin into the bloodstream; oxytocin then stimulates stronger contractions of the uterus. The contraction of the uterus is leading to the secretion of oxyt...
Also known as the womb, the uterus is a pear-shaped organ where the fetus grows. The cervix is the route to the vagina and gateway for sperm to enter. Vagina acts as the route for a penis to enter during intercourse and the exit of the fetus during delivery. ...
3. contractions contribute to the preparation of the cervix and uterus for advent of true labor 4. do not lead to dilation or effacement of the cervix, often termed "false labor" Cervical Shortening and slight Effacement cervix softens (cervical ripening), stretches, and thins, and eventually ...
Transection of the pelvic or vagus nerve forestalls ripening of the cervix and delays birth in rats. Innervation of the cervix is important for normal timing of birth because transection of the pelvic nerve forestalls birth and causes dystocia. To discover... LA Clyde,TJ Lechuga,CA Ebner,.....
HUMANANATOMY studyofstructureofbody:thebranchofsciencethatstudiesthephysicalstructureofahumanbody PHYSIOLOGY studyoffunctioningoflivingthings:thebranchofbiologythatdealswiththeinternalworkingsoflivingthings,includingfunctionssuchasmetabolism,respiration,andreproduction.