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October 20th and October 22nd

by: Jade Maynard

October 20th and October 22nd GWSS 357 A

Jade Maynard
GPA 3.93
Psychobiology of Women
Nancy Kenney

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About this Document

Covers the end of the vagina, the vulva, breasts, and the beginning of endocrinology
Psychobiology of Women
Nancy Kenney
Class Notes
25 ?




Popular in Psychobiology of Women

Popular in Women and Gender studies

This 3 page Class Notes was uploaded by Jade Maynard on Thursday October 22, 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 29 views. For similar materials see Psychobiology of Women in Women and Gender studies at University of Washington.


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Date Created: 10/22/15
Tuesday October 20 Vagina Cont 0 Lining and Secretions 0 The lining is estrogensensitive I High Estrogen Thick lining with a rapid cell turnover causing increased moistness I Low Estrogen Thin lining slow cell turnover Vaginal secretions change in acidity More acidic between puberty and menopause to protect from infection Around ovulation cervical mucus is basic in order to protect sperm Lubrication during sexual excitement is due to the venous supply to the vaginal lining being engorged with blood forcing uid from between the cells into the lumen of the vagina 0 Infections prevent lubrication 0000 0 There are few nerve endings in this area I Grafenberg Spot GSpot Small sensitive region on the front wall of the vagina a couple of inches in Vulva Visible external genitalia Extends from the mons veneris or mons pubis to the perineum Mons Pubis Fat and connective tissue covered by skin that sits atop the public bone the fat is estrogen sensitive and increasesdecreases at different points Perineum Tissue that runs from the vagina to the anus soft and sensitive usually cut during delivery to prevent tearing epistiotomy Labia Maj ora O Bulbs of the Vestibule I Specialized erectile tissue inside the labia majora I Engorge with blood during sexual excitement leading to swelling of the labia maj ora Labia Minora 0 Meet to form the clitoral hood 0 Sebaceous glands prevent gunk from building up here and creating infections 0 Engorge with blood as the venous spaces swell Vestibule O Vaginal Opening 0 Hymen Membrane partially covering the vaginal opening can streak but shouldn t break 0 Glands of Bartholin Provide a small amount of vaginal lubrication Urethral Opening Passage through which urine leaves the body 0 Clitoris O I Glanstip very sensitive to touch I Shaft contains two corpora cavernosa erectile tissue I Crura legs extends into a wishbone shape that hugs the vagina Thursday October 22 Breasts and Beginning Endocrinology Breasts are effectively modified sweat glands Size determined by the amount of fat and connective tissue Mammary Gland Milkproducing and milktransporting system Areola 0 Smooth muscle that contracts and relaxes voluntarily according to manual stimulation sexual excitement temperature and high emotional states 0 Montgomery Glands I Bumps on the areola I More visible during the postovulatory phase pregnancy and breastfeeding I Produce lubricating and antibacterial substance during breastfeeding when progesterone is high 0 Darker during pregnancy and a secondary areola is visible 0 Can have hormonesensitive hairs that are most visible during pregnancy and postovulation Inner MakeUp O Ducts in the nipples open into sinuses where small amounts of milk are stored before let down 0 The lactiferous duct tubes are called lobes and when they branch off to the alveoli they are called lobules O The alveolar cells are where the milk is produced 0 These are surrounded by fat and connective tissue Endocrinology Endocrine Glands 0 Produce hormones 0 Release hormones directly into the bloodstream no ducts O Hormones only act at their target tissue where the correct receptors are located 0 Target tissue is often far from the glands O Paracrines Act at the site of production ex prostaglandins Estrogens Estradiol 0 Target every cell of the body 0 Reproductive Effects I Proliferation of endometrial cells during the follicular phase I Build up of mammary tissue during luteal phase and pregnancy I Proliferation of muscle cells to the uterus during pregnancy O NonReproductive Effects 0 Progesterone Directs fat to appropriate sites during puberty Decreases rate of storage of calories as fat as an adult Increases general activity level Suppresses food intake and appetite Softens skin maintains thickness and resilience At puberty it initiates and stops bone growth spurt Helps retain calcium in adults Prevents marked increase or decrease in blood pressure when natural 0 Targets all cells in the body 0 Reproductive Effects Stimulates secretion of fats and glycogen during the luteal phase Stimulated mammary gland development during the luteal phase and pregnancy Prevents coordinated contractions of the uterus during pregnancy 0 NonReproductive Effects Controls fat storage reversing the effect of estrogen Stimulates food intake and appetite Prevents coordinated contraction of smooth muscle throughout the body Prevents a marked increase or decrease in blood pressure Causes somnolence HypothalamusPituitary System 0 Posterior Pituitary O Releases hormones from the hypothalamus into the blood 0 Hormones run down the axons from the cell body of the neuron out the axon terminals and into the pituitary


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