Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetz , are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. When sperm fertilizes meets an egg, this fertilized egg is called a zygote pronounced: ZYE-goat. The zygote goes through a process of becoming an embryo and developing into a fetus.
When Maya Bernstein, 18, first became sexually active in high school, she was nervous. How would she know what to do? Especially, it seems, how things should look. The numbers shot up so quickly that the American College of Obstetricians and Gynecologists ACOG issued new guidelines this month for doctors who perform labial and breast surgery. Among the recommendations: physicians are now encouraged to screen girls for body dysmorphic disorder, an obsession with an imagined or slight defect in appearance. While the rise in requests for labiaplasty remains relatively small—with an increase from to girls overall—the data suggest more girls are becoming ashamed of the most intimate parts of their bodies.
What changes will happen during puberty?
When puberty starts, your brain sends signals to certain parts of the body to start growing and changing. These signals are called hormones. Hormones also can cause emotional changes. During your teen years, hormones can cause you to have strong feelings, including sexual feelings. You may have these feelings for someone of the other sex or the same sex. Thinking about sex or just wanting to hear or read about sex is normal.