8th grade health
The endocrine system is made up of glands located throughout your body.
The pancreas is part of the endocrine system because it secrets insulin.
Your endocrine system is responsible for the fast growth you experience during your teen years.
The Male Reproductive System
Unlike the other body systems, the reproductive system is different for males and females. When males hit puberty the testes produce testosterone and sperm. The sperm is the male sex cell. The males have a sexual organ called the penis. Something that girls do not have.
Female Reproductive System
In the female reproductive system new life is formed through the process of fertilization. Fertilization is when a males sperm cell joins with the female egg. Once the egg is fertilized it travels from the Fallopian tube to the uterus where it attaches to the wall of the uterus and begins to develop. The woman has a vagina which is the muscular passageway from the uterus to the outside of the body. That is something that the males do not have.
During puberty, egg cells mature and are released by the ovaries in a process called ovulation. If an egg does not become fertilized the uterus begins to break down and shed by the body through menstruation. Menstruation is a cycle that last from about 5 to 7 days and happens about every 28 days.
Pregnancy and Labor
Labor is the process by which contractions gradually push the baby out of the uterus and into the vagina to be born. There are three stages of labor. The first stage may last for 12 hours or longer. The second stage of labor is when the cervix is fully dilated. Next the mother pushes the baby's head through the cervix and into the vagina. Then the mother continues to push until the baby is fully delivered. This stage generally lasts from a half hour to 2 hours. The third stage of labor is the final stage that lasts about 20 minutes. Contractions separate the placenta or afterbirth from the uterine wall and expel the placenta from the uterus and out of the body through the vagina.
STD's appear among 15 to 19 year olds. STD's can be bacterial (cure) or a virus (no cure). Most STD's are spread though sexual contact. You cannot tell if someone has an STD by his or her appearance. Many STD's can be treated and cured, but early diagnosis is very important. Some things that you should know about STD's are STD's can recur because the body does not build up an immunity to them. STD's are serious diseases that can cause sterility, blindness, deafness, insanity, and death.
A person can be a carrier of HIV for ten years or more before starting to show symptoms of AIDS. HIV can be spread from person to person through contact with sperm, fluid from the vagina, blood and breast milk. HIV stands for human immunodeficieny virus.
A person who is practicing abstinence is not having sex. You should not have sex until marriage. Abstinence may also refer to drugs. For example you can abstain from smoking and drinking.