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- https://bio.libretexts.org/Courses/Butte_College/BC%3A_BIOL_2_-_Introduction_to_Human_Biology_(Grewal)/Text/22%3A_Reproductive_System/22.08%3A_Menstrual_CycleThe menstrual cycle refers to natural changes that occur in the female reproductive system each month during the reproductive years. The cycle is necessary for the production of eggs and the preparati...The menstrual cycle refers to natural changes that occur in the female reproductive system each month during the reproductive years. The cycle is necessary for the production of eggs and the preparation of the uterus for pregnancy. It involves changes in both the ovaries and the uterus, and is controlled by pituitary and ovarian hormones. Day 1 of the cycle is the first day of the menstrual period, when bleeding from the uterus begins as the built-up endometrium lining the uterus is shed.
- https://bio.libretexts.org/Courses/Cosumnes_River_College/Introductory_Anatomy_and_Physiology_(Aptekar)/15%3A_Reproductive_System/15.06%3A_Structures_of_the_Female_Reproductive_SystemThe female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and ...The female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and carry and give birth to a fetus.
- https://bio.libretexts.org/Courses/Canada_College/Human_Biology_Biol_011_Textbook/18%3A_Reproductive_System/18.07%3A_Menstrual_CycleThe menstrual cycle refers to natural changes that occur in the ovaries and uterus each month during the reproductive years of a female.
- https://bio.libretexts.org/Courses/Manchester_Community_College_(MCC)/BIOL_106%3A_Essentials_of_Anatomy_and_Physiology_(Anzalone)/15%3A_The_Reproductive_System/15.06%3A_Structures_of_the_Female_Reproductive_SystemThe female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and ...The female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and carry and give birth to a fetus.
- https://bio.libretexts.org/Workbench/Principles_of_the_Human_Body/11%3A_Reproductive_System/11.06%3A_Structures_of_the_Female_Reproductive_SystemThe female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and ...The female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and carry and give birth to a fetus.
- https://bio.libretexts.org/Courses/Manchester_Community_College_(MCC)/BIOL_106%3A_Essentials_of_Anatomy_and_Physiology_(Anzalone)/15%3A_The_Reproductive_System/15.07%3A_Menstrual_CycleThe menstrual cycle refers to natural changes that occur in the ovaries and uterus each month during the reproductive years of a female.
- https://bio.libretexts.org/Courses/Community_College_of_Vermont/Human_Biology_(Gabor_Gyurkovics)/14%3A_Reproductive_System/14.07%3A_Menstrual_CycleThe menstrual cycle refers to natural changes that occur in the ovaries and uterus each month during the reproductive years of a female.
- https://bio.libretexts.org/Courses/Butte_College/BC%3A_BIOL_2_-_Introduction_to_Human_Biology_(Grewal)/Text/22%3A_Reproductive_System/22.06%3A_Structures_of_the_Female_Reproductive_SystemThe female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and ...The female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and carry and give birth to a fetus. The internal female reproductive organs include the vagina, uterus, Fallopian (uterine) tubes, and ovaries. The external organs — collectively called the vulva — include the clitoris and labia.
- https://bio.libretexts.org/Bookshelves/Human_Biology/Human_Biology_(Wakim_and_Grewal)/22%3A_Reproductive_System/22.07%3A_Menstrual_CycleThe menstrual cycle refers to natural changes that occur in the ovaries and uterus each month during the reproductive years of a female.
- https://bio.libretexts.org/Courses/Canada_College/Human_Biology_Biol_011_Textbook/18%3A_Reproductive_System/18.06%3A_Structures_of_the_Female_Reproductive_SystemThe female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and ...The female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs (or oocytes), secrete female sex hormones (such as estrogen), and carry and give birth to a fetus.
- https://bio.libretexts.org/Courses/Cosumnes_River_College/Introductory_Anatomy_and_Physiology_(Aptekar)/15%3A_Reproductive_System/15.07%3A_Menstrual_CycleThe menstrual cycle refers to natural changes that occur in the ovaries and uterus each month during the reproductive years of a female.
