Homeostasis could be disrupted by drugs which affected any of: sympathetic division,parasympathetic division,hypothalamus.

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Homeostasis is the maintenance of a stable internal environment in response to changes in the external environment. The sympathetic and parasympathetic divisions of the autonomic nervous system and the hypothalamus are all involved in regulating various physiological processes that contribute to homeostasis. Drugs that affect any of these systems could disrupt homeostasis. For example, drugs that stimulate the sympathetic division could increase heart rate and blood pressure, while drugs that inhibit the parasympathetic division could decrease digestion and salivation. Similarly, drugs that affect the hypothalamus could disrupt the regulation of body temperature, thirst, and hunger.

Homeostasis Could Be Disrupted by Drugs Which Affected Any Of