Objective: I can explain how pregnancy occurs. I can state 2 statistics of teen parents. I can use advocacy skills to encourage others to avoid pregnancy FERTILIZATION PROCESS Journal #3 How would your life change if you suddenly became a teen parent?

Pathway of Sperm 1.Sperm is produced in the testicles when a boy reaches puberty. Sperm will continue to be made for the rest of a male’s life. 2.From the testicles, sperm is stored in the epididymis until it matures. The maturation process takes 3-4 months. 3.After maturation the sperm moves to the vas deferens until it is release by ejaculation. Sperm mixes with a milky-white fluid to create semen. Semen is a milky-white fluid that nourishes the sperm and helps propel them. 4.When a male ejaculates his sex organs contract. This pushes the sperm out of the vas deferens, through the prostate gland, where more liquid is added to the semen. 5.The semen mixture then travels through and out of the urethra.

Fertilization 1.One sperm fertilize the egg in the fallopian tube 2.The fertilized egg multiplies into a ball of cells as it travels to the uterus. 3.The ball of cell implants itself on the uterine wall. 4.Fertilization + Implantation = Conception

Progression of a Cell  A cell is the basic unit of life. Humans are made of millions of cells. A fertilized egg is just one single cell.  After fertilization the fertilized egg begins to divide and multiply and it turns into an organism made of many cells  The organism develops and the cells become more complex.  Groups of cells make up tissues  Tissues then make up organs  Organs make up body systems  Cells, tissues, organs, and body systems are different levels of organization in the body system

Basic Development of Baby 1.Zygote – the fertilized egg is called a zygote 2.Embryo – the developing baby from implantation until the end of the eighth week of development 3.Fetus – the developing baby from the end of the eighth week until birth