Chap 4

    Master this deck with 90 terms through effective study methods.

    Imported from Quizlet

    Created by @rose2222

    gender

    behavioral, psychological, and social characteristics associated with being biologically male or female

    gonads

    ovaries + testes

    disorder of sex development (DSD)

    med term for condtitions that can lead to atypical chromosomal, gonadal, or anatomical sexual development ie. intersex (previously referred to as hermaphroditism or pseudohermaphroditism

    choromosome

    a threadlike structure in the nucleus of a cell that carries genetic information

    sexual reproduction

    production of offspring from the union of 2 parents

    gamete = germ cell

    a male or female reproductive cell ie. spermatozoon or ovum

    andropause

    70s-80s y.o: testosterone decreases = decrease in sperm, ejaculate, muscle strength, fatigue, mood disturbances

    autosome

    any chromosome that is not a sex chromosome

    sex chromosomes

    rod-shaped bodies in the nucleus of a cell at the time of cell division that contain information about whether the fetus will become male or female

    fertilization

    the union of two gametes which occur when a haploid sperm + haploid = diploid zygote with 46 chromosomes

    gestation

    period of intrauterine fetal development

    Does the father's sperm really determine the sex of the child?

    Yes depending on if an X chromosome sperm or Y chromosome sperm unites with the X-chromosome of the ovum (irony = men blame women for not bearing a son when in fact the sex is determined by his sperm)

    Female

    XX chromosome

    Male

    XY chromosome

    testes

    male gonads inside scrotum --> produce testosterone

    ovaries

    female gonads that produce ova and sex hormones

    At undifferentiated stage, what ducts are present?

    Mullerian and Wolffian ducts

    When do the male organs differentiate?

    7th -8th week

    When do the female organs differentiate?

    10-11th week

    What happens to the Mullerian and Wolffian ducts during differentiation in females?

    Wolffian ducts disappear due to lack of male hormones + Mullerian ducts fuse/ form uterus & vagina

    What happens to the Mullerian and Wolffian ducts during differentiation in males?

    testes produce Mullerian inhibiting factor + testosterone --> Mullerian ducts disappear during 3d month and Wolffian ducts are stimulated

    DO male and female external genitalia all develop from same tissue?

    YES; until 8th week undifferentiated tissue = tubercle which is a mound of skin beneath the umbilical cord

    Endocrine glands ie. gonads

    secrete hormones into blood

    androgen

    a hormone that promotes the development of male genitals and secondary sex characteristics;

    site of androgen production in males

    testes + adrenal glands

    site of androgen production in females

    andrenal glands

    progesterone

    hormone secreted by ovaries and helps regulate menstrual cycle

    oxytocin

    pituitary hormone that stimulates the ejection of milk from the breasts and causes increased contraction of uterus during labor

    prolactin

    pituitary hormone that stimulates milk production + production of progesterone

    Differentiate between sex and gender

    sex = biological aspects of being male or female gender = behavioral, psychological, and social characteristics of men and women

    Bruce/ Brenda case shed light on nature vs. nurture event

    Bruce = born male --> circumcision went wrong so family decided to carry out a sex reassignment surgery - lived life as Brenda but didn't feel like a girl - then became David but committed suicide

    Describe sexual repro

    1. sperm fertilizes the egg (23+23 chromosomes) --> zygote (46 chromosomes) 2. implantation hopefully on uterus 3. fetus development

    Describe sexual differentiation (internal organs)

    both male and female fetuses in-utero start out the same with undifferentiated internal organs: - male = once testes formed, they produce Mullerian inhibiting factor which stops the growth of Mullerian duct from becoming female internal sex organs - female = wolffian degenerates and Mullerian becomes uterus + vagina

    Describe sexual differentiation (external genitalia)

    start from the same mound of skin: tubercle then differentiates into penis + vulva

    Explain the role of that hormones + brain differentiation play in human development

    presence of androgens during appropriate critical stage of development may be the factor that programs the CNS to development sexual behaviors

    sexual differentiation of genitals begins ____ in pregnancy and sexual differentiation of brain occurs when?

    genitals = early in pregnancy brain = later in pregnancy

    intersex ie. DSD

    term used for a variety of chromosomal or hormonal conditions that can lead to the development of reproductive or sexual anatomy that doesn't fit the typical definitions of female/ male

    Who is affected by Klinefelter Syndrome?

    men

    Characteristics of Klinefelter Syndrome?

    - men have 3 sex chromosomes (XXY) because ovum has an extra X chromosome (total chromosomes =47) - small testes, low sperm count, breast enlargement, no facial/ body hair

    gynecomastia

    abnormal breast development in male

    Treatment for Klinefelter syndrome

    testosterone therapy during adolescence --> enhance secondary sexual characteristics

    Who is affected by Turner Syndrome?

    females

    Characteristics of Turner Syndrome

    - female ovum has no sex chromosome and is being fertilized by an X sperm (XO, total chromosomes = 45) - lack of internal female sex organs, infertility, short stature, mental retardation - amenorrhea

    triple X syndrome (sperm has XX chromosome)

    can grow up with this condition undetected --> likelihood of mental retardation/ infertility

    XYY chromsome (sperm has YY chromosome)

    can grow up undetected --> likelihood of mental retardation, infertility, genital abnormalities

    Two types of hormonal disorders of sex development

    1. congenital adrenal hyperplasia (CAH) 2. androgen-insensitivity syndrome (AIS)

    congenital adrenal hyperplasia (CAH)

    condition involving overproduction of androgen in the adrenal glands because the body lacks an enzyme in the adrenal gland that can't regulate androgen production

    CAH in females characteristics

    - masculinized genitals ie. enlarged clitoris - menstrual irregularities - early body hair - deepening of voice

    CAH in males

    early pubertal changes

    How can a similar CAH syndrome occur?

    pregnant woman take androgens/ drugs that mimic male hormones

    What can result from CAH in females as they grow older?

    CAH girls exhibit more tomboyism + have higher rates of bisexuality/ homosexuality

    androgen-insensitivity syndrome (AIS)

    a condition in which a genetic male's cells are insensitive to androgens, resulting in the development of female external genitalia (but no female internal repro organs)

    When is AIS usually detected?

    when a seemingly normal girl fails to menstruate and chromosomal analysis discovers that she is genetically male, XY

    What happens with AIS people?

    gonads develop into testes and produce testosterone but the individual's cells can't absorb it --> testosterones thus have no effect on the body

    AIS body characteristics explanation

    - Wolffian ducts didn't respond to testosterone during differentiation --> no external male genitalia - but the Mullerian Inhibiting Factor was released --> no female internal organs --> AIS people only have two testes in abdomen that the body cannot use and the "default" female external genitalia

    gender roles

    culturally defined ways of behaving seen as appropriate for males and females including the attitudes, personality traits, emotions, and even postures and body language - extended into social behaviors such as the occupations we choose, how we dress, wear our hair, how we talk, and how we interact with others

    gender traits

    innate or biologically determined gender-specific behaviors

    masculinity

    the ideal cluster of traits that society attributes to males ie. strong, stable, aggressive, competitive, self-reliant, and emotionally undemonstrative

    femininity

    the ideal cluster of traits that society attributes to females ie. intuitive, loving, nurturing, emotionally expressive, gentle

    What are the chromosomal conditions that may result in disorders of sex development

    1. Klinefelter Syndrome = genetically male (XXY) but features are feminized 2. Turner Syndrome = genetically female (XO) but no female organs --> infertility 3. XYY = undetectable mental retardation 4. XXX = undetectable mental retardation

    ID the hormonal conditions that may result in DSD

    1. CAH = congenital andrenal hyperplasia (CAH) --> females produce a lot of androgens 2. AIS = body can't absorb testosterone

    Are gender roles innate?

    World cannot split that cleanly into biological vs. social causes of behavior

    Biologically based gender roles/ traits

    1. physically males tend to be larger/ stronger with more of their body weight in muscles rather than fat 2. females are more neurologically advanced than males and they mature faster 3. females are heartier; males are more likely to have developmental conditions ie. autism + more likely to miscarry/ stillborn 4. females = higher prevalence of depression/ eating disorders

    Universal behavioral differences between boys and girls

    1. boys engaged in more rough-and-tumble play + dominated egoistically (control situation thru commands) 2. girls sought/ offered physical contact, sought help, and suggested responsibility (invoking rules/ greater good)

    socializaiton

    the process i which an infant is taught the basic skills for functioning in society

    How does gender role socialization occur in children?

    1. evolutionary theory = adapting to environment 2. social learning theory = learning from our environment 3. cognitive development theory = age-stage learning

    evolutionary theory

    use biological difference between man and woman to explain gender difference - male = player --> can impregnate many women at any given time - female = slut --> can only get pregnant once/ after birth

    social learning theoy

    learn gender roles from environment ie. same system of rewards and punishments that we learn our other social roles i.e. kids model behavior after their same-sex parent

    cognitive development theory

    all kids go through a universal pattern of development and there really is not much parents can do to alter it --> kids can only process a certain kind and amount of info at each development stage

    schema

    cognitive mechanism that helps to organize info

    gender schema

    cognitive mechanism that helps us to understand gender roles

    gender schema's are so ingrained/ so powerful, might not even realize it

    comment on a little girl becoming very strong... don't even make that comment for a little boy

    sex typing

    a cognitive thinking pattern that divides the world into male and female categories and suggests the appropriate behaviors, thoughts, actions, professions, and emotions for each

    androgyny

    having high levels of both masculine and feminine traits

    What could be a solution to the tension between the sexes?

    androgyny

    gender binary

    a gender classification system that divides people into two groups - male/ female

    gender spectrum

    continuum of possibilities of biological gender, gender identity, gender expression, and sexual orientation

    gender diverse

    an individual whose gender identity or gender expression lies outside of the socially accepted gender norms

    transgender or trans

    a general term referring to a person or group of people who identify or express their gender in a variety of different ways, typically in opposition to their biological sex

    transgender = umbrella term that includes

    transyouth, transsexuals, transwomen, and transmen

    transyouth

    a label often used to describe youth who are experiencing issues related to gender identity or expression

    transsexual

    a person who identifies with a gender other than the one he or she was given at birth

    transwoman

    a label that may be used by male-to-female transsexuals to signify they are female with male history

    transmen

    a label that may be used by female to male transsexuals to signify they are male with a female history

    gender dysphoria

    a condition in which a person feels extreme confusion and/or discomfort between his/ her biological sex/ gender identity

    queer or genderqueer

    umbrella terms in the gender diverse community that refer to a range of different sexual orientations, gender behaviors, or ideologies

    gender fluidity

    a flexible range of gender expression, which can change day-to-day and allows for less restrictive and stereotypical gender expectations

    transprejudice

    negative attitudes, behaviors, or discrimination against those who are transgender

    transsexualism

    a condition in which people identify with a gender other than the one they were given at birth

    sex reassignment surgery

    a wide range of various surgical options to change genitalia of a transsexual (ie. gender reassignment)