the hormons

DEFINITION :

A hormone is a chemical messenger that carries a signal from one cell (or group of cells) to another via the blood. All multicellular organisms produce hormones .

PITUITARY:

FUNCTION:

The pituitary gland secretes hormones regulating homeostasis, including trophic hormones that stimulate other endocrine glands. It is functionally connected to the hypothalamus by the median eminence.

THYROID:

FUNCTION:

Controls the rate of at which the body's cells work (the metabolic rate) by the production of thyroxine.

PARATHYROID:

FUNCTION:

Regulate calcium levels and have no effect on metabolism.

THYMUS:

FUNCTION:

stimulate the production of certain infection-fighting cells. It is of central importance in the maturation of T cells.

ADRENALS:

FUNCTION:

help maintain the balance of many body functions. Stress, fasting, temperature changes, infections, drugs.

OVARY:

FUNCTION: