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October 13th and October 15th

by: Jade Maynard

October 13th and October 15th GWSS 357 A

Jade Maynard
GPA 3.93
Psychobiology of Women
Nancy Kenney

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About this Document

Covers ovulation, the oviduct, the uterus, and the beginning of the vagina
Psychobiology of Women
Nancy Kenney
Class Notes
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Popular in Psychobiology of Women

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This 3 page Class Notes was uploaded by Jade Maynard on Thursday October 15, 2015. The Class Notes belongs to GWSS 357 A at University of Washington taught by Nancy Kenney in Summer 2015. Since its upload, it has received 20 views. For similar materials see Psychobiology of Women in Women and Gender studies at University of Washington.

Similar to GWSS 357 A at UW

Popular in Women and Gender studies


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Date Created: 10/15/15
Tuesday October 13 Ovulation PreOvulatory Phase About 20 immature ova start the maturation process but all except one the Graafian follicle die off Graafian maturation 0 Proliferation of follicular cells in terms of both size and number 0 Increase of follicular uid 0 Maturation of ovum Hormones released by the ovarianGraafian follicle O Estradiol the most common and active type of Estrogen 0 Androgens but very few little 0 Inhibin As the follicle grows it swells against the ovarian wall into a volcanolike stigma Substances released during ovulation 0 Ovum 0 Follicular uid 0 Corona Radiata Cells that provide nutrients for the ovum between ovulation and the point where it enters the oviduct O Sticky Cumulus Layer of cells that surrounds the ovum and corona radiate holding it in place until it is picked up by the oviduct prevents the egg from being released into the pelvic cavity Mittleschmerz middle pain Pain from blood released when the ovarian wall rips happens in 20 of women but is severelonglasting for only a few PostOvulatory Phase Corpus Luteum 0 Structure that develops inside the ovary from the remains of the Graafian follicle O Produces hormones Progesterone Estradiol Androgens and Inhibin O Grows for the first half of this phase and spends the second half dying if it isn t fertilized 0 When it dies it becomes the corpus albicans similar to scar tissue on the inside of the ovary Oviduct Fallopian Tube Fimbria 0 Sit on top of the ovary but are not attached 0 Use cilia hairlike cells to sweep the ovaries for sticky cumuluscorona radiate O Responsible for moving the ovum into the lumen of the oviduct a process that takes minutes following ovulation Ampulla O Takes up half of the oviduct 0 Wide lumen and thin muscle wall O The ovum is moved by cilia and segmented peristaltic contractions at a fast rate 0 AmpullaIsthmus Junction 0 The ovum moves from the fimbria to here in just minutes but then it remains stationary for 225 days 0 This is the most common site of fertilization although this can only occur within 24 hours of ovulation 0 Isthmus 0 Segment of the oviduct connecting the ampullaisthmus junction to the uterus 0 Thick muscle wall narrow lumen O Ovum moves slowly over 0515 days via segmental peristaltic contractions 0 If the ovum has been fertilized it starts to be implanted into the uterine wall 23 days after leaving the oviduct 57 days after ovulation 0 Ectopic Pregnancy Implantation and growth occurs outside the upper portion of the uterus most commonly in the oviduct Thursday October 15 The Uterus and the Vagina 0 A hollow muscular organ secured in the pelvic cavity by the broad ligament 0 Parts 0 Fundus Upper twothirds O Cervix Narrow part underneath the fundus O Cervical Os Gap between the cervix and the vagina 0 Cervical Mucus 0 Hormone sensitive substance 0 Around ovulation when estrogen is high and progesterone is low it is wet and slippery to help sperm travel 0 In the postovulatory phase when estrogen and progesterone are high it is thick and pasty called hostile mucus because it s hard for sperm to travel through it 0 Cervical mucus protects the uterus from bacterial infection 0 Fundus 0 The upper twothirds of the uterus 0 Where implantation takes place 0 Has a thick muscle wall called the endometrium 0 The menstrual cycle according to the uterus O Menses The endometrium is broken down and destroyed menstrual blood is a result of the coiled blood vessels in the endometrium tightening until their break 0 Proliferative Phase from the end of menses to ovulation Endometrial cells increase in size and number O Secretory Phase from ovulation to the next menses Endometrial cells fill With fats and glycogen to provide nutrients and make the region thick and protective 0 Menstrual Fluid 0 24 tablespoons of blood 0 Glandular secretions from endometrial cells 0 Unfertilized ovum and fragments from endometrial cells 0 Dysmenorrhea O Cramps caused by high levels of prostaglandins in the uterus 0 Can be blocked by certain drugs 0 Prostaglandins can be used to induce labor 0 Endometriosis 0 Growth of endometrial tissue outside the uterus such as the lungs or even the brain 0 Causes severe pain because it goes through all the stages that other endometrial tissue does 0 If scar tissue builds around the uterus fertility may be decreased 0 Tube that passes at a 45 degree angle from the vaginal opening to the uterus 0 Anterior and posterior walls are close together 0 Very distensible 0 Vaginal Fornices O Widened areas near the cervix 0 Act as shock absorbers O Pooling place for semen


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