Hormones

Hormones are the biologically active substances produced and produced secretory cells of the glands of internal secretion (see) and some other tissues. Hormones act directly in the blood, lymph space, and some of them - in cerebrospinal fluid. Each of the hormone acts on specific functions or organs, causing them of specific changes (table.). Hormones can easily penetrate through the membrane of cells and endothelium capillaries and possess high biological activity, rendering effect even in very small quantities. Regulation of allocation of hormones is neuro-humoral way. Hormones quickly destroyed tissues. Therefore, when hormonal therapy for therapeutic effect of constant introduction of hormonal drug. Hormones are mostly not have the species specificity, so it is possible to introduce the human hormonal preparations derived from animal and synthetic means. Cm. also Hormonotherapy and articles on the titles of certain hormones.

Gland of internal secretion Produced hormone Effect on the body
Pituitary gland: front share Somatotropic Effect on the processes of growth of all organs and tissues
Thyrotropic Stimulates the thyroid gland, the synthesis of hormones in it and the arrival of a blood
Follicle-stimulating and luteinizing hormone Stimulate the development and function of sex glands
Prolactin Stimulates the secretion of the Breasts of milk and function of the yellow body
Adrenocorticotropic hormone (ACTH) Selects the current blood hormones crust napochechnikov (corticosteroids)affecting carbohydrate, protein, fat and water-salt metabolism and the development of secondary sexual characteristics
the average share Melanocytestimulating hormone Regulates the deposition of pigment
rear share (and hypothalamus) Oxytocin Stimulates uterine contractions
Vasopressin (antidiuretic hormone) Increases reabsorbqiyu water in the kidney, raises blood pressure
Thyroid gland Thyroxine, triiodothyronine Increase the basal metabolic rate, affect the Central nervous system, trophic processes, growth, increases diuresis
Thyrocalcitonin Has gipokaltsiemicheskaya action
The parathyroid gland Parathyroid hormone (paratireoidin) Increases the content of calcium in the blood and removes syndrome tetanii
Pancreas Insulin Reduces sugar content in blood. Promotes tissue uptake of carbohydrates, the transition of carbohydrates into fats, protein synthesis and slows the transition of proteins and fats in carbohydrates
Glucagon Increases the breakdown of glycogen in the liver, resulting in increased blood sugar
The adrenal cortical layer Aldosterone Regulates electrolyte and water exchanges
Hydrocortisone, corticosterone (glucocorticoids) Contribute to the accumulation of glycogen in the liver, increases the content of sugar in the blood, causing an increase in the excretion of urine, change the picture red and white blood cells, have a strong anti-inflammatory and antiallergic activity
cerebral layer Adrenaline Improves blood pressure, strengthens and uchsay intimate reductions, causes relaxation of muscles bronchi and intestines, narrow vessels of the skin, expanding light vessels and coronary vessels of the heart
Norepinephrine The main effect - increased blood pressure by narrowing of peripheral vessels
Ovaries Estradiol Affects the growth of the uterus, the development of secondary sexual characters, participates in the implementation of the menstrual cycle
Progesterone Creates conditions for gestation, inhibits the contractile muscle excitability of the uterus, stimulates the development of mammary glands
Testicles Testosterone Necessary for the formation of the sexual organs and the development of secondary sexual characteristics men, stimulates spermatogenesis