Health

Nick Amato

Endocrine System
* is responsible for the fast growth you experience during your teen years.
* 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.

the Male reproductive system

* urethra: tube that carries urine and sperm to the outside of the body.

* Penis: the external sexual organ.

* testes : two small glands that produce sperm and hormones.

* scrotum: muscular sac that contains the testes.

female reproductive system

* ovaries: contain the ova, or eggs and produce hormones.

* fallopian tubes: carry eggs from the ovaries to the uterus.

* uterus: shelters and nourishes the fetus.

* endometrium: the lining of the uterus.

*Cervix: open of the uterus.

*Vigina: muscular passageway from the uterus to the outside of the body.

Menstruation:

* during puberty, egg cells mature and are released by the ovaries in a process called ovulation.

*ovulation-the release of one mature egg each month.

*menstruation-when the lining material, the unfertilized egg, and some blood flow out of the body.

*menstrual cycle-hormonal changes that occur in females from the beginning of one menstruation to the next.

Pregnancy:

*fertilization: the union of a single sperm and an ovum.

*zygote: a fertilized ovum

*blastocyst: a ball of cells with a cavity in the center.

*amniotic sac: a fluid-filled sac that surrounds the embryo.

STD's:

*each year, one-quarter of all new cases of 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 through sexual contact.

*you cannot tell if someone has an STD by their appearance.

HIV/AIDS and abstinence:

*avoid being alone on a date.

*HIV-human immunodeficiency virus

*AIDS-a deadly disease that interferes with the body's natural ability to fight infection.

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