Hormones : inconspicuous , valuable , irreplaceable

word "hormone" its origin is obliged to Greek.Translated it means "initiate".This chemical compound produced by cells to control body functions.

Hormones play a huge role in the human body: they affect all the vital actions, ranging from the birth of the body and ending with his aging.If the generation of an hormone occurs in a timely manner, the body does not experience difficulties, and if there are any abnormalities in the body begin to occur changes.Hormones affect the external and internal human characteristics: weight proportions of the figure, growth, sexual development and so on.

hormone functions

Hormones are endowed with a number of features, they are:

  • necessary components of each system of the body that controls the vital processes;
  • assists the body in adapting to changing environmental conditions, contribute to the growth of tissues, produce genetic control apparatus;
  • «Veda" the birth and development of the offspring;
  • is effective in "heavy", and in low concentrations.

Types of hormones and the way "delivery»

thyroxine, oxytocin, melatonin, dopamine, epinephrine, gastrin, estrogenty, angiotensin, secretin - this is only part of the hormones that are found in our body.The most interesting thing is that the same can be produced hormones different systems of the human body, for example: insulin hormone is produced in the gastrointestinal tract and the same process occurs in the central nervous system.

produced in several ways (intracellular and extracellular) through the body fluid to the parts of the human body hormones delivery.When transporting hormones to your destination can make their way away from the one-thousandth of a millimeter up to several tens of centimeters.

impact of hormones

it is known that the same hormones are able to:

  • distributed on interstitial fluid and in the place of synthesis to transmit the necessary information;
  • Affect to distant organs, tissue, blood-borne and other circulating fluid;
  • act simultaneously on a group of organs and tissues;
  • regulate state agencies in different tissues;
  • To address the authorities in the surrounding tissues via intercellular fluid.

Location "producers" hormones

  • Pituitary - thyroid, melanostimuliruyuschy, gonadotropin, somatotropin, lyutoiniziruyuschy, prolactin, andrenokortikotropny;
  • thyroid gland - thyroxine, calcitonin, triiodothyronine;
  • parathyroid - parathyroid hormone;
  • Gonads - estrogen, progesterone, estradiol, testosterone;
  • Gastrointestinal hormones - enterokrinin, gastrin, cholecystokinin, enteroanthelone, pancreozymin, secretin;
  • Adrenal glands - norepinephrine, cortisol, aldosterone, adrenaline;
  • pancreas - insulin, glucagon.
  • Places hormone synthesis: kidney, placenta, blood, ovary, testes, liver, hypothalamus, parathyroid gland, pineal gland, the central nervous system, thyroid gland.

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