The World of Health
The Endocrine System.
The Endocrine System- the Endocrine System is made up of glands located throughout the body.
The endocrine glands work by responding to signals from the brain or from the pituitary gland.
Major glands of the Endocrine System are adrenal, thyroid, parathyroid, pineal body, and pituitary.
Male Reproductive System
Male Reproductive System. During puberty, the testes produce testosterone and sperm.
Injury to the testes can cause testicular cancer.
Seminal Vessicles, Prostate Gland, and Cowpers Glands: secrete fluids to help nourish and protect the sperm.
Female Reproductive System
Ovaries: contain the ova, or eggs, and produce hormones.
Fallopian Tubes: carry eggs from the ovaries to the uterus (Fertilization takes place here.)
Uterus: Shelters and nourishes the fetus.
Fertilization - when a male's sperm cell joins with a female egg.
If an egg is not fertilized, the uterus lining breaks down and is shed by the body through menstruation.
During puberty, egg cells mature and are released by the ovaries in a process called ovulation.
Menstrual Cycle - Hormonal changes that occur in females from the beginning of on menstruation to the next.
Pregnancy and Labor
Many women choose to avoid caffeine during pregnancy.
Ultrasound- a test that produce an image on a screen by reflecting sound waves off the body's outer structures.
Labor- process by which contractions gradually push the baby out of the uterus and into the vagina to be born.
Most STD's are spread only through sexual contact.
You cannot tell if someone has an STD by his or her appearance.
Most STD's have either very mild or no symptoms.
HIV/AIDS and Abstinence
A blood test is the only way of knowing if a person is infected with the HIV virus.
There is no cure for HIV or AIDs.
The best weapons in the fight against HIV and AIDS are knowledge and abstinence.