The document outlines the anatomy and functions of the male and female reproductive systems, highlighting the roles of ovaries and testes in hormone and gamete production. It describes puberty as the developmental stage for both genders, noting physical changes and the onset of the menstrual cycle in females. Additionally, it explains fertilization and the stages of embryonic development, emphasizing the transition from zygote to fetus.

1. Digestion & Nutrition Chapter 14 created by TeachPower.net

2. Female Reproductive System Ovaries are the main organs of the female reproductive system. Cells in the ovaries produce three kinds of hormones. Estrogen Progesterone Eggs .

3. Male Reproductive System Testes are the main organs of the male reproductive system. Located in the scrotum . Two kinds of cells are produced in the testes. Testosterone Sperm which are made in the epididymis and travel down the urethra.

4. Puberty Puberty is the time in your life when the male and female reproductive organs fully develop. Males begin between the ages of 13 – 16. Females begin between the ages of 10 – 13. Boys develop broader shoulders and more muscles. Girls develop breasts and broader hips. Puberty marks the beginning of the menstrual cycle for females.

5. Menstrual Cycle Menstrual cycle occurs every 28 to 32 days. Triggered by the release of hormones in the female reproductive system. The hormones cause an egg to mature and the sides of the uterus to thicken. This happens in case the egg is fertilized, so it will have a place to attach and be nourished by the mother for 9 months of pregnancy.

6. Fertilization Fertilization occurs when ONE of the millions of sperm reaches the egg and joins with it. When fertilization occurs a new cell is formed called a zygote .

7. Embryo Development First 3 months: embryo Rest of the 6 months: fetus