Lecture 5 - Gender 04-29-2010

Lecture 5 - Gender 04-29-2010 - Gender Issues Sex and...

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Gender Issues Sex and Gender Definitions •S e x – genetic, anatomical • Gender – psychosocial meaning of maleness and femaleness • Gender Identity – subjective sense of being male or female
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Gender-Identity Formation • Typical prenatal differentiation – 23 human chromosomes • 22 autosomes and 1 sex chromosome – Chromosomal sex • XX: female XY: male Typical Prenatal Differentiation
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Typical Prenatal Differentiation • Gonadal sex – Ovaries or testes • Hormonal sex – Estrogens and androgens Typical Prenatal Differentiation • Internal structures – Müllerian duct • Males – Vas deferens, seminal vesicles, ejaculatory duct – Wolffian duct • Females – Fallopian tubes, uterus, inner 1/3 vagina • External structures – Genital tubercle • Clitoris or penis – Labioscrotal swelling • Labia or scrotum
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Prenatal Differentiation of Internal Structures Prenatal Differentiation of External Genitals
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Homologous Sex Organs Sex Differentiation Of The Brain • Hypothalamus – Differentiates in pregnancy – Directs production of sex hormones – May influence sex differences and sexual functioning • Cerebral hemispheres • Corpus callosum
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Atypical Prenatal Differentiation • Fetally Androgenized Females: A chromosomally normal (XX) female who as a result of excessive exposure to androgens during sexual differentiation, develops external genitalia resembling that of a male. – Cause could be a biological malfunction of mom
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This note was uploaded on 05/30/2010 for the course HDE HDE 12 taught by Professor Polen during the Spring '10 term at UC Davis.

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Lecture 5 - Gender 04-29-2010 - Gender Issues Sex and...

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