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Hormonal Disorders in Childhood

Hormones are chemically diverse substances (e.g. steroids; peptides), which are released into the bloodstream in response to some stimulus, and activate cells, depending on the hormone in question.
The system of a group of glands and organs in the body that controls the secretion of hormones into the blood stream is called the endocrine system .
The main components of the endocrine system, the main hormones they secrete and their function are laid out in the table below.
The hormonal disorders dealt with in this section are:

  Pituitary Gland Thyroid Gland Parathyroid Glands Islets of the Pancreas Adrenal glands Gonads
Location Base of the brain; controlled by the hypothalamus Throat Throat Pancreas Above the kidneys in the lower back Testes (Male)
Ovaries (Female)
Hormone

1. Corticotrophin
2. Thyroid-stimulating hormone,
3. FSH
4. LH
5. Growth     hormone

Thyroxine

Parathyroid Insulin

1. Adrenaline
(Epinephrine)
2. Noradrenaline
(Norepinephrine)
3. Aldosterone
4. Cortisol
5. Certain Androgens

1. Testosterone
2. Oestrogen
3. Progesterone


Function

1; 2; 3; 4 Control the function of other endocrine glands and stimulate these glands to produce other hormones.
5. Ensures growth during childhood.

Increases metabolic rate. Physical and mental development in young. Removal of Calcium (CA++) from bone, re-absorption of CA++ from kidneys; Activates Vitamin D. Lowers blood glucose levels; facilitates the entry of glucose into target cells; hormone of energy storage; promotes synthesis of glycogen, protein and fat.

1; 2 Fight-or-flight reaction to danger and emotional stress.

3. Regulates the salt balance in the body

4. Processing protein, fat, and carbohydrate

5. Male sex hormones

1. Growth and sexual development; sperm production.
2. Development & maturation of accessory reproductive structures (e.g. uterus; breasts) and secondary sexual characteristics.
3. Development of endometrium & maintenance during pregnancy. Development of breasts.

Source: [ 2 ]

The information in this page is presented in summarised form and has been taken from the following source(s):
1. University of Maryland Medical System Online Health Guides: http://www.umm.edu/
2. Introduction to Human Physiology , 2nd Edition (1981), M. Griffins, Macmillan Publishing Co. Inc, New York


Other HON resources 
   From MedHunt
    (websites)


Hormonal Disorders in Children
    From HONselect
     (def;articles & more)   

 

 

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  http://www.hon.ch/Dossier/MotherChild/child_hormones/child_hormones.html Last modified: Jun 25 2002