Unit 4: Human Reproduction Unit title: Why are little things important? Global Context: Identities...
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Transcript of Unit 4: Human Reproduction Unit title: Why are little things important? Global Context: Identities...
Unit 4: Human Reproduction
Unit title: Why are little things important?
Global Context: Identities and relationships
Concepts: Change & pubertyStatement of inquiry: Sexual
development in adolescents is an important physiological process that helps
to define personal identities.
Lesson #1:Lesson #1:Puberty and Puberty and Reproductive Reproductive
organsorgans
Puberty……Puberty……
Some changes that happen to both boys and girls:•underarm hair grows•pubic hair grows•body smell gets stronger.•emotional changes•growth rate increases
Boys•voice breaks (gets deeper)•testes and penis get bigger•testes start to produce sperm cells•shoulders get wider•hair grows on face and chest.
Girls•breasts develop•ovaries start to release egg cells (periods start)•hips get wider.
The male reproductive system:The male reproductive system:
http://kidshealth.org/teen/sexual_health/guys/male_repro.html#cat20016
Testes (or testicles): make sperm and produce testosteroneScrotum: stores the testicles
Duct system1)Vas Deferens : long tube where sperm travels to the urethra2)Epididymis: Stores sperm in the scrotum until ready to travel in the Vas Deferens
Accessory Glands:1)Seminal Vesicle: Adds semen a thick, milky fluid that nourishes the sperm2)Prostate gland: Adds more nutrients to the semen and blocks the urethra in ejaculation
Urethra: Where urine and semen leave the bodyPenis: made of soft, spongy tissue that can expand or contract, erections occur when the soft tissue fills with blood.
The female reproductive system contains The female reproductive system contains
these parts:these parts:
• http://kidshealth.org/teen/sexual_health/girls/female_repro.html#cat20015
Ovaries: Finish producing eggs and release estrogen and progesterone.Uterus: Also called womb. Where fertilized egg (zygote) implants and grows into a babyCervix: Separates Uterus and Vagina, dilates during birth (about 10cm)Vagina: Connects uterus to the outside of the body. Baby travels through the vagina in birth•Fallopian Tubes: Where the egg travels from ovaries to uterus
HomeworkHomeworkBizzare Reproduction: In partners create a letter size poster explaining how another specie reproduces.