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Hypothalamus: Structural Organization (Section 4, Chapter 1) Neuroscience Online: An Electronic Textbook for the Neurosciences | Department of Neurobiology and Anatomy - The University of Texas Medical School at Houston

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Patrick Dougherty, Ph.D., Department of Anesthesiology and Pain Medicine, MD Anderson Cancer Center Last Review 20 Oct 2020 Homeostasis is the process by which a steady state of equilibrium, or constancy, in the body with respect to physiological functions and chemical compositions of fluids and tissues is maintained. Physiological set points refer to the baseline level at which functions such as heart rate, and at which chemical compositions such as plasma sodium concentration are normally maintained. These set points are represented in the brain by specific discharge rates in neurons dedicated to the monitoring and control of specific physiological processes. Thus, separate groups of neurons are dedicated to the control of heart rate, temperature, etc., by their set point discharge rate. The hypothalamus has the greatest concentration of nuclei at which set points are encoded, monitored and controlled, and so can be considered as the key brain region for the control of homeostasis.

Hypothalamus: Structural Organization (Section 4, Chapter 1) Neuroscience Online: An Electronic Textbook for the Neurosciences | Department of Neurobiology and Anatomy - The University of Texas Medical School at Houston Skip to Main Content Skip to Navigation (accesskey n) Home Table of Contents Further Reading Section 4: Homeostasis and Higher Brain Functions Chapter 1: Hypothalamus: Structural Organization Patrick Dougherty, Ph.D., Department of Anesthesiology and Pain Medicine, MD Anderson Cancer Center Last Review 20 Oct 2020 × Support Neuroscience Online and Neuroanatomy Online Neur

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