The Fantastical World Of Hormones

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   Nedjelja, 25 Siječanj 2015 00:00

A hormone (from Greek ὁρμή, "impetus") is a class of regulatory biochemicals that is produced in all multicellular organisms by glands, and transported by the circulatory system to a distant target organ to coordinate its physiology and behavior. Hormones serve as a major form of communication between different organs and tissues. Hormones regulate a variety of physiological and behavioral activities, including digestion, metabolism, respiration, tissue function, sensory perception, sleep, excretion, lactation, stress, growth and development, movement, reproduction, and mood. Generally, only a small amount of hormone is required to alter cell metabolism.

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