Monday, April 20, 2009

All the cells in your body respond to messages sent by three of your major body systems- the nervous system, the imune system, and the endocrine system. These three systems work closely together to coordinate the functions of the bosy. The endocrine system is especially important during the teen years because one of its main functions is to regulate growth and devolpment.
Endocrine Glands are ductless or tubeless organs or groups of cells that secrete hormones directly the body.

Hormones are chemically substances that are produced in glands and help regulate many of your body's functions.

Thyroid Glands produces hormones that regulate metabolism body heat,and body growth.

Parathyroid Glands produce a hormone that regulates the body's calcium and phosphorus balance.

Pituitary Gland regulates and controls the activities of all the other endocrine glands.

Pancreas a gland that serves both the digestive and the endocrine system.

Gonads ovaries or testes.

Andrenal Glands are glands that help the body recover from stress and respond to emergencies.

Reproductive System the system of organs involved in producing offspring.

Sperm male reproductive cells.

Testosterone male sex hormone.

Testes two small glands that produce sperm.

Scrotum an external skin sac.

Penis is a tube shaped organ that extends from the trunk of the body just above the testes.
Semen is a thick fluid containing sperm and other secretions from the male reproductive system.

Sterility is the inabilty to reproduce.

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