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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)

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)



Gender Expression

masculinity/femininity


Changes over time and is different between cultures

Gender Identity

Man/Woman or other


Usually voiced between 2 and 5 years



Stage 1 of Sex Differentiation

Chromosomes.


Determined at conception.


Sperm provides physical sex


Y smaller than X

Stage 2 of Sex Differentiation

Gonads which determine hormones


For first 6 weeks look the same.

Development of Gonads: Testes

Requires presence of a functional Y chromosome.

Development of Gonads: Ovaries

Requires:


1. Absence of Y chromosome


2. Presence of at least 2 functional X

Stage 3 of Sex Differentiation

Internal Genitalia


Raw material: wolffian and mullerian ducts

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

Development of internal genitalia: female-sex?

Requires absence of:


1. Androgens


2. Mullerian Inhibiting factor


3. Inductor Substance

Development of External Genitalia

Depends on the presence or absence of dihydrotestosterone (DHT)


Present = penis/scrotum


Absent = vulva

Sex Differentiation in Brain

Hypothalamus, corpus callosum


Overall Size

Intersex Condition Frequency

1 in 2,000 births

Turner's Syndrome

XO Chromosome


Normal vulva (usually raised as girls)


Internal genitalia not fully developed


Do not develop breasts, have periods, or reproduce



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

Androgen Insensitivity Syndrome (AIS)

XY


Lacks receptors that respond to androgens


Ambiguous Internal Genitalia


Normal vulva.


Typically raised as female and female gender identity

Santha Soundarajan

Olympic athlete with Androgen Insensitivity syndrome who was stripped of medal after chromosomal testing (later returned)

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

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

Margaret Mead: Study of Munduguor

Both sexes "masculine"

Margaret Mead: Study of Arapesh

Both sexes "feminine"

Margaret Mead: Study of Tchalnbuli

Both sexes androgynous

% of Trans males who receive sexual reassignment

About 10%

% of Trans females who receive sexual reassignment

50-60%

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.)

Healthcare Discrimination Trans %

70% reported previous bad experiences

% of Trans regretting reassignment surgery

1-2%

% of Females that are able to orgasm from only peno-vaginal penetration

8%

Phalloplasty

Construction of penis.


Not much erotic Sensation

Vaginoplasty

Construction of Vagina


More likely to have sensation

Mons

Fatty tissue at top of vulva

Introitus

Opening of the vagina

Hymen

Fold of tissue partially covering the introitus.


Virginity

Perineum

Space between vagina and anus

Taint

Vagina

Canal Extending into the body, angling upwards to the cervix/uterus


3 Separate layers of tissue

Vaginal lubrication cause and function

Caused by vasocongestion


Helps alkalinize the acidic chemical balance and increase enjoyment

Grafenberg Spot (G-Spot)

Front wall of Vagina

Fallopian Tube

Connects uterus to ovaries

Menarche (age)

First period around 9-14

Average menstruation duration

2-6 days

Average cycle length

24-42 days

Ovulation

Egg coming out of ovary


Occurs about 14 days before menstruation.


Alkaline lubrication

Premenstrual Dysphoric Disorder

PMS interferes with functioning

Dysmennorrhea

Pain during menstruation

Amenorrhea

Absence of menstruation


More common in athletes and people with eating disorders

Vaginitis

Usually resulting from infection


Chemical balance disturbed, inflammation, swelling, soreness

Pap Smear

Checking cells in cervix for cancer

Hysterectomy

Removal of the uterus

Oophorectomy

Removal of the ovaries

GLans

Greatest concentration of nerve endings on penis


Castration

Removing testosterone (chemical or removal of testes)

Corona

Ridge of glans

Frenulum

Band of tissue on underside of glans

Internal Structure of Penis

2 Cavernous bodies on top of a spongy body

Vas Deferens

Carries sperm away from testes to seminal vesicles

Semineferus Tubules

In testes

Production of Sperm




Seminal vesicles

Secrte alkaline fluid rich in fructose


Connects vas deferens to ejaculatory duct in prostate

Cowper's Gland

Pre-cum + sperm

Interstitial cells (Leydig Cells)

In testes, produce androgen

Epididymus

In testes


Stores sperm while they mature for several weeks.


Sperm passes from testes to vas deferens here

Cryptorchidism

When testicles don't descend

Vasectomy

Disconnect of vas deferans from urethra

Prostate Gland

Secretes 30% of fluid released during ejaculation

Seminal Fluid

Comes from seminal vesicals, prostate gland

Sperm count in single ejaculation (% as well)

200-500 million.


1% of the fluid volume

Emission Phase

"point of no return"

Expulsion Phase

Actual Ejaculation

Testicular cancer

Most common malignancy in men 15-35

Prostate Cancer

Most frequently diagnosed cancer in men


Pain in pelvis, lower back and urinary complications