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Human Body
crines are stimulated or inhibited by products of the nervous system.
Within the central nervous system, there are groups of nerve-cells, which are capable of functioning as glands. The chemical messengers released by these neuro-secretory cells are called neuro-hormones. These cells serve as link between the central nervous system and the endocrine system. With the help of these dual cells acting as go betweens, the central nervous system can control the functional activity of many endocrine glands, and adjust their activity in accordance with the requirements of varying internal and external environments. Equally important is the reverse relationship by which the endocrine system can influence the central nervous system. This concept of the reciprocal inter-relation of the two system is now generally accepted.
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Recent studies on neuro-secretions leave no doubt that the nervous system has its own endocrine specialization for the release of hormones. The functional interlocking is so remarkable that nervous and endocrine elements are coming to be regarded as constituting a single integrated system called 'neuro-endocrine system'. As research deepens our knowledge of co-ordinate systems, it becomes increasingly apparent that their products participate not only in every bodily function, but have profound influence upon the mental states and behaviour of individuals.
The neuro-endocrine system is the seat of instincts and impulses of man. Impulses and urges not only generate feelings but also command appropriate action that satisfy the need. Animals just act out instinctive rituals of eating, courtship and fighting because they do not possess a reasoning mind. Man, on the other hand, because he has conscious reasoning, can control his responses to the insistence of the impulsive drives. Of course, man also does feel angry, hungry and sexually aroused. But he can modify his action. He could, for example, channel an erotic mood on to another creative track.
Love, hate and fear are endocrine impulses. It is the primitive urge of aggression from the endocrine, that will start war and not the brain because no reasoning mind
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