Reproduction and Sexuality. Ground Rules No personal questions of anyone Respect is absolutely...
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Transcript of Reproduction and Sexuality. Ground Rules No personal questions of anyone Respect is absolutely...
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Reproduction and Sexuality
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Ground Rules
No personal questions of anyone
Respect is absolutely mandatory!
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In this unit…
We will be learning about the functions of the male and female reproductive systemsWe will talk about why parents choose to have childrenWe will review the events that lead to conception and birthWe will cover the birth processWe will cover the role relationships have in reproduction and pregnancy
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What is sexuality?
Sexuality is part of human personality, including all aspect of being male or female
4 dimensionsBiological
Psychological
Cultural
Ethical
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Why do we study sexuality?
To Understand ourselves
Understand others
Develop positive decision making skills regarding sexuality
Dispel myths and rumors
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Statistics (MN student survey)
Survey
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Why are families changing?
TechnologyIncreased communication tech. Allows families to be apart, yet maintain contactEase of travel allows people to live farther apart, yet still be an active part of their family
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Changing societal valuesMarriage without children
Cohabitation
Divorce
Dual-Career Families
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Still talking about languageGender
Biological basisXY sex chromosomes = malesXX sex chromosomes = female
Gender role developmentWe learn about the roles of males and females by observing the people who surround us
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Parents and other relatives
People on TV
People in Movies
People in Books and Magazines
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Gender stereotypesDefinition: A generalized notion of what a person is like based on only that person’s genderWays they can be harmful:
Limit a person’s opportunitiesMake a person question their sexualityInfluence people’s behavior in an inappropriate manner
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Before we can continue…
We need to know about our Endocrine System
Get a red book, and fill out the worksheet with a partner
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Male Reproductive System
Hormones and pubertyPuberty begins when the pituitary gland sends a chemical message to the testes = make lots of testosterone
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Testosterone = changes in sexual characteristics
Changes in the Primary Sex CharacteristicsExternal and internal sex organs increase in size and maturityDevelopment of Secondary Sexual Characteristics
Increase in bone densityIncrease in muscle massDeepening of the voiceIncrease of metabolism
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Increase in pubic/body hairLegs
Armpits
Face
Groin/scrotum
Chest
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Other types of growth occur during puberty
Emotional
Social
SpiritualMorals and ethics
Mental
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The male reproductive system
ExternalPenis
Male organ of sexual pleasure, reproductions, and urination
Scrotum
Holds and protects the testes; regulates temperature of the testes
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Internal
UrethraGoes from the bladder to the outside worldPassageway for urine and semen
Vas DeferensLong thin cord that connect the testicles to the urethra
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ProstateGland under the bladder and surround the urethraGives sperm a protein shake like fluid
Seminal VesiclesSmall glands that give sperm a “Power Bar”
Testes (factory)The two male gonads inside the scrotumSecrete testosterone and produce sperm
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Epididymis
Where sperm maturesComma-shaped structures found on the back surfaces of the testes
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Sperm Development and Delivery
Sperm growth begins in the testes
Sperm reaches maturity in the epididymis
Sperm production begins ~ 12
Average male produces ~ 150 million sperm/day
The role of the sperm cell is to carry the father’s ½ of the genetic material to the egg
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Sperm Production
Sperm is produced in the testicles
From here it moves to the vas deferens where fluids are added to form semen.
The fluid from the seminal vesicles = 60% of the semen
This gives energy
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Cowper’s gland
This adds fluid to lubricate the urethra
The prostate gland produces a fluid that protects the sperm as it travels through the female reproductive tract
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Ejaculation
This is the ejection of the semen from the penis.
When the semen enters the female, the sperm “swim” upward using their tails.
Sperm can survive in the female body for several days
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If every dot was a sperm cell…
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Erections
An erection occurs when the penis fills with blood making it stiff and erect.
Humans are a minority, they don’t have a penis bone.
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Nocturnal emissions
Wet dreams
It is normal for these to happen, and it is normal for these not to happen.
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Keeping the reproductive system healthy
CleanlinessProtection and preventionTight clothing – avoidAny signs of pain when urinating, unusual discharges, or sores require medical examination.Testicles should be examined monthly for cancer
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Disorders of the Male Reproductive System
Sterility
Undescended Testes
Inguinal Hernia
Enlarged prostate
Cancer of the Prostate and Testes
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Write 2 sentences describing your assigned disorder