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Chapter 4

Human Sexuality ch.4.docx

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Western University
Psychology 2075

Human Sexuality Chapter 4 Genital Self Image  Our attitudes and feelings towards our genitals  People view there genitals both positively and negatively: mostly positively  They usually view themselves negatively if their bodies don’t fit in with the social norms  More and more people are opting for genital cosmetic surgery because they feel that they are defective in some way  There is no proof that these surgeries result in sexual enhancement Female sexual organs  Can be classified into two sections the external and the internal organs  External: o Consist of the clitoris, the mons pubis, the inner lips, the outer lips, and the vaginal opening o Collectively these are known as the vulva o The clitoris:  A highly sensitive sex organ in the female, is found in the front of the vagina entrance and the rest of the clitoris extends deeper into the body  Has a rich supply of nerve endings making it extremely sensitive  Has no reproductive function- only for sexual pleasure o The mons  The fatty pad of tissue under the pubic hair o The Labia  The outer lips are the rounded pad of fatty tissue lying on either side of the vaginal entrance  The inner lips are the thin folds of skin lying on either side of the vaginal entrance the bartholin glands lie just inside the inner lips  Perineum is the skin between the vaginal entrance and the anus  Intoirtus is the vaginal entrance o The vulvar vestibule  Vestibule is the area of the vulva enclosed by the inner lips  Well supplied with nerve endings  Some women have vulvar vestibules which result in severe pain o The Hymen  The hymen is a thin membrane that may partially cover the vaginal entrance  Internal: o Consist of the vagina, the vestibular bulbs, the skene ‘s glands, the uterus, a pair of ovaries and a pair of fallopian tubes o The vagina  The vagina is the tube shaped organ in the female into which the penis is inserted during coitus and through which a baby passes during birth  Also called the birth canal  Its about three to four inches long  At the top it connects with the cervix  There are three layers of the vagina, the vaginal mucosa, the middle layer is muscular and the and the outer layer forms the covering  The vagina is highly flexible and can stretch easily  The Pubococcygeus muscle is a muscle around the vaginal entrance o The vestibular bulbs  The vestibular bulbs are erectile tissue running under the inner lips and skene’s glands  They lie on either side of the vaginal wall o The Skenes gland of the female prostate  Also called the paraurethral gland  Secretes fluid  The size changes from women to women  This is dubbed the G-spot o The Uterus  Is the organ in the female in which the fetus develops  Tilted forward and held in place by ligaments  Main function is to hold a nourish a baby  Three layers- the endometrium – highly vascular, the myometrium- very muscular and the perimetrium forms the external cover of the uterus o The fallopian tubes  Are the tubes extending from the uterus to the ovaries, also called the oviducts  Very narrow and contain cilia o The ovaries  Two organs in the female that produce eggs and sex hormones  Female is estimated to have 1 million immature eggs  Contains follicles that when matured bursts open and the egg is released o The breasts  Contain 15-20 clusters of mammary glands each with its own opening to the nipple  The nipple is highly sensitive (has many nerve endings)  The area surrounding the nipple is called the areola Male sex organs  External organs
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