Endocrine System

What sets the time for drinking to be born?

What determines that the mother produces milk to feed her baby?

What indicates that people are no longer children and become sexually mature adults with male and female characteristics?

What coordinates and integrates body functions and activities?

All the functions and activities of our body are coordinated and integrated by the nervous system and the endocrine (hormonal) system. The endocrine system is made up of various glands that are located at different points of our body. Glands are structures that produce substances that have a certain function in our body.

The endocrine glands produce and release into the blood regulatory substances called hormones - these, when released into the blood, travel through the body to the target organs on which they act.


The pituitary can be considered the "master gland" of our body. It produces various hormones and many of them stimulate the functioning of other glands, such as the thyroid, adrenals and sex glands (ovaries and testes). Growth hormone is one of the hormones produced by the pituitary gland. The functioning of the body depends on the hormonal balance. Excessive growth hormone production, for example, causes a condition called gigantism (overgrowth) and lack of it causes dwarfism, or lack of growth in the body.

Another hormone present in the human body and also produced by the pituitary is the antiduretic (ADH). This substance allows the body to save water on excretion (formation of urine).