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Hormonal Signaling

Meaning

Hormonal signaling is the fundamental process by which endocrine cells secrete chemical messengers, known as hormones, that travel through the bloodstream to regulate the function of distant target cells and organs. This sophisticated communication system coordinates complex physiological processes, including metabolism, growth, reproduction, and stress response, ensuring systemic homeostasis. The precision of hormonal signaling is paramount, as subtle alterations in the concentration or receptor sensitivity of these molecules can cascade into significant clinical dysfunctions. It represents the core mechanism of the entire endocrine system.