Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Female Reproductive System Bellringer List 6 things each that you know about the female reproductive system. 8 th Grade
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu What the female reproductive system does –Function is to make eggs and provide a place to support and nourish a developing human 8th Grade Female Reproductive System
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu 8th Grade
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu How the Female Reproductive System Works
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Ovaries Are the female reproductive organs that produce eggs and the hormones estrogen and progesterone –Eggs (ova) – sex cells that are produced by the ovaries and can be fertilized by sperm –All of the eggs a female will ever have, are in her 2 ovaries when she is born Make the hormones estrogen and progesterone –Regulate the monthly release of an egg and prepare the body for pregnancy 8th Grade Female Reproductive System
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Vagina Female reproductive organ that connects the outside of the body to the uterus and that receives sperm during reproduction Urethra – above and separate from the vagina – carries urine from the bladder to the outside of the body 8th Grade Female Reproductive System
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Fallopian Tubes and Uterus Fallopian tubes – the female reproductive organs that transport an egg from the ovary to the uterus Uterus – female reproductive organ that provides a place to support a developing human –Muscular cavity the size of a fist 8th Grade Female Reproductive System
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu 8th Grade
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu How the Menstrual Cycle works
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Menstrual cycle A monthly series of hormone-controlled changes that prepare the uterine lining for a pregnancy Increased levels of estrogen cause uterine lining to thicken Ovulation – the release of an egg from a follicle in the ovary High levels of estrogen and progesterone further thicken and maintain the uterine lining If pregnancy does not occur – estrogen and progesterone levels quickly fall Menstruation – breakdown and discharge of the uterine lining out of the vagina –Usually lasts between 3 and 7 days 8th Grade Female Reproductive System
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Menstrual Cycle can vary Average cycle lasts 28 days –Can vary from one individual to another and from month to month Ovulation usually occurs on the 14 th day –Environmental factors can influence the timing of a cycle Stress Diet Travel Exercise Weight gain or loss illness 8th Grade Female Reproductive System