Hormona

Definicion:
hormones
The hormones are substances segregated by specializing cells, located in glands of internal secretion or endocrine glands (lacking in conduits), or also for cells epiteliales and intermediate in order to affect the function of other cells. There are animal hormones and vegetable hormones as the auxinas, acid abscísico, citoquinina, giberelina and the ethylene.
hypophysis:
Hypophysis, gland endrocrina principal of the vertebrates. The hormones that itsegregates control the functioning of almost all other glands
thyroid:
The thyroid is one of the largest endocrine glands in the body. This gland is found in the neck inferior to (below) the mouth and at approximately the same level as the cricoid cartilage. The thyroid controls how quickly the body burns energy, makes proteins, and how sensitive the body should be to other hormones.
parathyroid:
The parathyroid glands are small endocrine glands in the neck, usually located behind the thyroid gland, which produce parathyroid hormone. In rare cases the parathyroid glands are located within the thyroid glands. Most often there are four parathyroid glands, but some people have six or even eight.
thymus:
In human anatomy, the thymus is an organ located in the upper anterior portion of the chest cavity just behind the sternum. Hormones produced by this organ stimulate the production of certain infection-fighting cells. It is of central importance in the maturation of T cells
adrenals: