{"id":101,"date":"2015-12-08T22:05:32","date_gmt":"2015-12-08T22:05:32","guid":{"rendered":"http:\/\/brooksidepress.org\/ob-ped\/?page_id=101"},"modified":"2023-08-20T21:56:44","modified_gmt":"2023-08-20T21:56:44","slug":"1-14-parturition","status":"publish","type":"page","link":"https:\/\/brooksidepress.org\/ob-ped\/lessons\/lesson-1-the-reproductive-systems\/section-iii-events-of-pregnancy\/1-14-parturition\/","title":{"rendered":"1-14. PARTURITION"},"content":{"rendered":"<p>Parturition, also called childbirth or birth, is the process of bringing forth an infant\u00a0from the uterus (the womb).<\/p>\n<p>This process can be divided into three stages:<\/p>\n<ul>\n<li>first stage:\u00a0dilation;<\/li>\n<li>second stage: expulsion; and<\/li>\n<li>third stage: placental stage.<\/li>\n<\/ul>\n<p>Your part in the\u00a0delivery process will be given in detail in Lesson 2 of this subcourse. This brief\u00a0description of the three stages will allow you to become familiar with the anatomy of\u00a0pregnancy and delivery.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/111890817\" width=\"500\" height=\"375\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<div id=\"adx_native_ad_110653\"><\/div>\n<p>a. <strong>First Stage: Dilation.<\/strong><\/p>\n<p style=\"padding-left: 30px;\">(1) In this stage, the cervix opens up (dilates) to a diameter of 10 cm (4\u00a0inches). This opening is large enough for an infant&#8217;s head to pass through. At the\u00a0beginning of this stage, the contractions of the uterus (labor) occur about every 20 to 30\u00a0minutes and last for about 40 seconds. Contractions take place about every three\u00a0minutes until the cervix is fully dilated to 10 cm.<\/p>\n<p style=\"padding-left: 30px;\">(2) The length of time it takes for a woman&#8217;s cervix to dilate completely\u00a0varies greatly. Usually, full dilation takes longer in a woman having her first baby&#8211;\u00a0perhaps 14 hours. At the other extreme, a woman who has had several children may\u00a0be fully dilated in less than an hour. Even these estimates are not always true. Do not\u00a0count on a woman having a long period of dilation just because she is having her first\u00a0child. About the time the cervix becomes fully dilated, the amniotic sac breaks. The\u00a0contractions of the uterus force the amniotic sac down toward the cervix. The pressure\u00a0on the sac causes it to burst, spilling its contents out (breaking of the bag of waters).<\/p>\n<p>b.<strong> Second Stage: Expulsion<\/strong>. The child is actually delivered at the end of this\u00a0stage. During the expulsion stage, the baby is pushed through the birth canal. If themdelivery is normal, the crown of the baby&#8217;s head emerges first. Then the shoulders\u00a0emerge, one shoulder at a time. The lower part of the baby slides out quickly after the\u00a0shoulders emerge. The average time of this stage of childbirth is one hour and 45\u00a0minutes.<\/p>\n<p>c. <strong>Third Stage: Placental Stage<\/strong>. The uterus becomes much smaller when the\u00a0child is delivered. As the uterus becomes smaller, the placenta (afterbirth) becomes\u00a0detached in several places from the lining of the uterus. A few minutes after childbirth,\u00a0uterine contractions force the afterbirth into the vagina from which the placenta is\u00a0expelled. Expect some bleeding. A normal amount is one to two cups of blood.\u00a0Sometimes there is a delay in the separation of the placenta from the uterine lining, and\u00a0there is more than a normal amount of bleeding. When this occurs, the bleeding must\u00a0be controlled, and the afterbirth may need to be removed artificially.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Parturition, also called childbirth or birth, is the process of bringing forth an infant\u00a0from the uterus (the womb). This process can be divided into three stages: first stage:\u00a0dilation; second stage: expulsion; and third stage: placental stage. Your part in the\u00a0delivery process will be given in detail in Lesson 2 of this subcourse. This brief\u00a0description of &hellip; <a href=\"https:\/\/brooksidepress.org\/ob-ped\/lessons\/lesson-1-the-reproductive-systems\/section-iii-events-of-pregnancy\/1-14-parturition\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">1-14. PARTURITION<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":26,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-101","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/pages\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":4,"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/pages\/101\/revisions"}],"predecessor-version":[{"id":510,"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/pages\/101\/revisions\/510"}],"up":[{"embeddable":true,"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/pages\/26"}],"wp:attachment":[{"href":"https:\/\/brooksidepress.org\/ob-ped\/wp-json\/wp\/v2\/media?parent=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}