{"id":4498,"date":"2017-03-29T17:17:08","date_gmt":"2017-03-29T17:17:08","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/wm-biology2\/?post_type=chapter&#038;p=4498"},"modified":"2024-04-26T01:44:24","modified_gmt":"2024-04-26T01:44:24","slug":"introduction-to-human-pregnancy-and-birth","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/wm-biology2\/chapter\/introduction-to-human-pregnancy-and-birth\/","title":{"raw":"Introduction to Human Pregnancy and Birth","rendered":"Introduction to Human Pregnancy and Birth"},"content":{"raw":"<h2>Explain fetal development during the three trimesters of gestation<\/h2>\r\nPregnancy begins with the fertilization of an egg and continues through to the birth of the individual. The length of time of <strong>gestation<\/strong> varies among animals, but is very similar among the great apes: human gestation is 266 days, while chimpanzee gestation is 237 days, a gorilla\u2019s is 257 days, and orangutan gestation is 260 days long. The fox has a 57-day gestation. Dogs and cats have similar gestations averaging 60 days. The longest gestation for a land mammal is an African elephant at 640 days. The longest gestations among marine mammals are the beluga and sperm whales at 460 days.\r\n<h2>What You\u2019ll Learn to Do<\/h2>\r\n<ul>\r\n \t<li>Explain fetal development during the three trimesters of gestation<\/li>\r\n \t<li>Describe labor and delivery<\/li>\r\n \t<li>Compare the efficacy and duration of various types of contraception<\/li>\r\n \t<li>Discuss causes of infertility and the therapeutic options available<\/li>\r\n<\/ul>\r\n<h3>Learning Activities<\/h3>\r\nThe learning activities for this section include the following:\r\n<ul>\r\n \t<li>Human Gestation<\/li>\r\n \t<li>Labor and Birth<\/li>\r\n \t<li>Contraception and Birth Control<\/li>\r\n \t<li>Infertility<\/li>\r\n \t<li>Self Check: Human Pregnancy and Birth<\/li>\r\n<\/ul>","rendered":"<h2>Explain fetal development during the three trimesters of gestation<\/h2>\n<p>Pregnancy begins with the fertilization of an egg and continues through to the birth of the individual. The length of time of <strong>gestation<\/strong> varies among animals, but is very similar among the great apes: human gestation is 266 days, while chimpanzee gestation is 237 days, a gorilla\u2019s is 257 days, and orangutan gestation is 260 days long. The fox has a 57-day gestation. Dogs and cats have similar gestations averaging 60 days. The longest gestation for a land mammal is an African elephant at 640 days. The longest gestations among marine mammals are the beluga and sperm whales at 460 days.<\/p>\n<h2>What You\u2019ll Learn to Do<\/h2>\n<ul>\n<li>Explain fetal development during the three trimesters of gestation<\/li>\n<li>Describe labor and delivery<\/li>\n<li>Compare the efficacy and duration of various types of contraception<\/li>\n<li>Discuss causes of infertility and the therapeutic options available<\/li>\n<\/ul>\n<h3>Learning Activities<\/h3>\n<p>The learning activities for this section include the following:<\/p>\n<ul>\n<li>Human Gestation<\/li>\n<li>Labor and Birth<\/li>\n<li>Contraception and Birth Control<\/li>\n<li>Infertility<\/li>\n<li>Self Check: Human Pregnancy and Birth<\/li>\n<\/ul>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-4498\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Original<\/div><ul class=\"citation-list\"><li>Introduction to Human Pregnancy and Birth. <strong>Provided by<\/strong>: Lumen Learning. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Biology 2e. <strong>Provided by<\/strong>: OpenStax. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8\">http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em>. <strong>License Terms<\/strong>: Access for free at https:\/\/openstax.org\/books\/biology-2e\/pages\/1-introduction<\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":17,"menu_order":22,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc\",\"description\":\"Biology 2e\",\"author\":\"\",\"organization\":\"OpenStax\",\"url\":\"http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"Access for free at https:\/\/openstax.org\/books\/biology-2e\/pages\/1-introduction\"},{\"type\":\"original\",\"description\":\"Introduction to Human Pregnancy and Birth\",\"author\":\"\",\"organization\":\"Lumen Learning\",\"url\":\"\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"}]","CANDELA_OUTCOMES_GUID":"95407bbb-9f74-4648-83d2-aebf169999e9","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-4498","chapter","type-chapter","status-publish","hentry"],"part":3801,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/chapters\/4498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/wp\/v2\/users\/17"}],"version-history":[{"count":3,"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/chapters\/4498\/revisions"}],"predecessor-version":[{"id":8568,"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/chapters\/4498\/revisions\/8568"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/parts\/3801"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/chapters\/4498\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/wp\/v2\/media?parent=4498"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/pressbooks\/v2\/chapter-type?post=4498"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/wp\/v2\/contributor?post=4498"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/wm-biology2\/wp-json\/wp\/v2\/license?post=4498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}