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.