Human Sexuality

Facts on the Endocrine and Male and Female Reproductive Systems, Menstruation, Pregnancy and Labor, STD's, HIV/AIDS and Abstinence.

Endocrine System

  • The endocrine system is a chemical communication system that controls many body functions.
  • The endocrine system is made up of many glands.
  • The chemicals secreted by endocrine glands are called hormones.

Male Reproductive System

  • The male reproductive system consists of seminal vesicles, a prostate gland, Cowpers glands, a urethra, a penis, two testes, a scrotum, vas deferens, and the epididymis.
  • During puberty, the testes produce testosterone and sperm.
  • To avoid problems with the male reproductive system, shower regularly and perform self ispections.

female reproductive system

  • The female reproductive system consists of two ovaries, two Fallopian tubes which lead into the uterus, the endometrium, the cervix, and the vagina.
  • The female reproductive system's three functions are to store eggs cells, create offspring, and give birth.
  • The egg is fertilized in the uterus of the female reproductive system.

the reproductive systems


  • Menstruation occurs if the egg is not fertilized.
  • In order for menstruation to happen, the uterus lining breaks down and is shed by the body.
  • Menstruation usually last from 5 to 7 days.

Pregnancy and Labor

  • Pregnancy results from fertilization, or the union of a single sperm and an ovum.
  • There are three parts of pregnancy: the first, second, and third trimester.
  • Similar to pregnancy, there are three parts of labor. The first lasts for 12 hours or longer, the second 1.5 to 2 hours, and the third lasts about 20 minutes.


  • Most STD's are incurable, and often show no symptoms.
  • Some common STD's include Chlamydia, Genital Herpes, Genital Warts, Trichomoniasis, Gonorrhea, and Syphilis.
  • One good way to avoid getting STD's is to abstain from sexual activity.


  • HIV is a virus, while AIDS is a deadly disease that is caused by HIV.
  • A person can be a carrier of HIV for ten years or more before starting to show symptoms of AIDS.
  • HIV is spread from person to person through contact with sperm, fluid from the vagina, blood, breast milk.


  • People choose to abstain from sexual activity so there are fewer teen pregnancies or contractions of STD's.
  • Some methods of performing abstinence include: going on group dates, practicing beforehand on how to decline another person's offer for sexual activity.
  • Many people practice abstinence until marriage.

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