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70 Cards in this Set
- Front
- Back
Three Parts of Gender |
1. Physical/biological/anatomical sex 2. Gender Expression (external) 3. Gender Identity (internal) |
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4 Factors of Sex |
1. Chromosomes (XX, XY) 2. Hormones (relative amount after puberty) 3. Internal Genitalia (Ovaries, testes, vagina, etc.) 4. External Genitalia (vulva, penis, scrotum, etc) |
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Gender Expression |
masculinity/femininity Changes over time and is different between cultures |
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Gender Identity |
Man/Woman or other Usually voiced between 2 and 5 years |
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Stage 1 of Sex Differentiation |
Chromosomes. Determined at conception. Sperm provides physical sex Y smaller than X |
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Stage 2 of Sex Differentiation |
Gonads which determine hormones For first 6 weeks look the same. |
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Development of Gonads: Testes |
Requires presence of a functional Y chromosome. |
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Development of Gonads: Ovaries |
Requires: 1. Absence of Y chromosome 2. Presence of at least 2 functional X |
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Stage 3 of Sex Differentiation |
Internal Genitalia Raw material: wolffian and mullerian ducts |
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Development of internal genitalia: male-sex? |
Requires: (all produced by testes) 1. Androgens (i.e. testosterone) 2. Mullerian Inhibiting Factor 3. Inductor Substance Stimulate development of wolffian ducts |
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Development of internal genitalia: female-sex? |
Requires absence of: 1. Androgens 2. Mullerian Inhibiting factor 3. Inductor Substance |
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Development of External Genitalia |
Depends on the presence or absence of dihydrotestosterone (DHT) Present = penis/scrotum Absent = vulva |
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Sex Differentiation in Brain |
Hypothalamus, corpus callosum Overall Size |
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Intersex Condition Frequency |
1 in 2,000 births |
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Turner's Syndrome |
XO Chromosome Normal vulva (usually raised as girls) Internal genitalia not fully developed Do not develop breasts, have periods, or reproduce |
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Klinefelder's Syndrome |
XXY Penis/scrotum and testes at birth Underdeveloped penis etc at puberty Sterile with little interest in sex until prescribed testosterone Many make a gender transition |
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Androgen Insensitivity Syndrome (AIS) |
XY Lacks receptors that respond to androgens Ambiguous Internal Genitalia Normal vulva. Typically raised as female and female gender identity |
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Santha Soundarajan |
Olympic athlete with Androgen Insensitivity syndrome who was stripped of medal after chromosomal testing (later returned) |
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Congenital Adrenal Hyperplasia (CAH)(Fetally androgenized) |
Produce excess androgen due to malfunctioning adrenal gland Effects vary based on when the increased androgen begins and how high the levels are May result in female internal genitalia with penis/scrotum-like external genitalia |
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DHT Deficiency |
XY Normal Vulva At puberty, acceleated testosterone production by tests reverse DHT deficiency Testes descend and clit enlarges into a penis Most transition from female to male in adolescence |
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Margaret Mead: Study of Munduguor |
Both sexes "masculine" |
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Margaret Mead: Study of Arapesh |
Both sexes "feminine" |
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Margaret Mead: Study of Tchalnbuli |
Both sexes androgynous |
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% of Trans males who receive sexual reassignment |
About 10% |
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% of Trans females who receive sexual reassignment |
50-60% |
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3 Aspects of Sexual Orientation |
1. Attractions (erotic and romantic) 2. Behavior (who you're having sex with or wish you were having sex with) 3. Identity (L, G, B, Straight, etc.) |
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Healthcare Discrimination Trans % |
70% reported previous bad experiences |
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% of Trans regretting reassignment surgery |
1-2% |
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% of Females that are able to orgasm from only peno-vaginal penetration |
8% |
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Phalloplasty |
Construction of penis. Not much erotic Sensation |
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Vaginoplasty |
Construction of Vagina More likely to have sensation |
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Mons |
Fatty tissue at top of vulva |
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Introitus |
Opening of the vagina |
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Hymen |
Fold of tissue partially covering the introitus. Virginity |
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Perineum |
Space between vagina and anus
Taint |
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Vagina |
Canal Extending into the body, angling upwards to the cervix/uterus 3 Separate layers of tissue |
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Vaginal lubrication cause and function |
Caused by vasocongestion Helps alkalinize the acidic chemical balance and increase enjoyment |
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Grafenberg Spot (G-Spot) |
Front wall of Vagina |
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Fallopian Tube |
Connects uterus to ovaries |
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Menarche (age) |
First period around 9-14 |
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Average menstruation duration |
2-6 days |
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Average cycle length |
24-42 days |
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Ovulation |
Egg coming out of ovary Occurs about 14 days before menstruation. Alkaline lubrication |
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Premenstrual Dysphoric Disorder |
PMS interferes with functioning |
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Dysmennorrhea |
Pain during menstruation |
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Amenorrhea |
Absence of menstruation More common in athletes and people with eating disorders |
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Vaginitis |
Usually resulting from infection Chemical balance disturbed, inflammation, swelling, soreness |
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Pap Smear |
Checking cells in cervix for cancer |
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Hysterectomy |
Removal of the uterus |
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Oophorectomy |
Removal of the ovaries |
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GLans |
Greatest concentration of nerve endings on penis
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Castration |
Removing testosterone (chemical or removal of testes) |
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Corona |
Ridge of glans |
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Frenulum |
Band of tissue on underside of glans |
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Internal Structure of Penis |
2 Cavernous bodies on top of a spongy body |
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Vas Deferens |
Carries sperm away from testes to seminal vesicles
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Semineferus Tubules |
In testes
Production of Sperm |
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Seminal vesicles |
Secrte alkaline fluid rich in fructose Connects vas deferens to ejaculatory duct in prostate |
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Cowper's Gland |
Pre-cum + sperm |
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Interstitial cells (Leydig Cells) |
In testes, produce androgen |
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Epididymus |
In testes Stores sperm while they mature for several weeks. Sperm passes from testes to vas deferens here |
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Cryptorchidism |
When testicles don't descend |
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Vasectomy |
Disconnect of vas deferans from urethra |
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Prostate Gland |
Secretes 30% of fluid released during ejaculation |
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Seminal Fluid |
Comes from seminal vesicals, prostate gland |
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Sperm count in single ejaculation (% as well) |
200-500 million. 1% of the fluid volume |
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Emission Phase |
"point of no return" |
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Expulsion Phase |
Actual Ejaculation |
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Testicular cancer |
Most common malignancy in men 15-35 |
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Prostate Cancer |
Most frequently diagnosed cancer in men Pain in pelvis, lower back and urinary complications |