What concept describes when one hormone opposes the action of another hormone?

• A. Hormonal antagonism
• B. Hormonal synergy
• C. Hormonal isolation
• D. Hormonal feedback

Answer: (A)

The concept that describes when one hormone opposes the action of another hormone is known as hormonal antagonism. In this context, hormonal antagonism is crucial for maintaining physiological balance and homeostasis within the body. For instance, insulin and glucagon are two hormones that exemplify this concept; insulin lowers blood glucose levels, while glucagon increases them. Their opposing actions ensure that blood glucose levels remain stable.

Understanding hormonal antagonism is important because it highlights how hormones can interact dynamically, influencing various bodily functions and responses to changes in internal and external environments. Essentially, the presence of antagonistic hormones allows the endocrine system to finely tune metabolic processes and maintain equilibrium, counteracting extremes that could lead to physiological abnormalities.