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Hypothalamic Nuclei
Nuclei and functions in the Hypothalamus
17
Medical
Graduate
04/30/2009

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Term
Secretes gnRH and exhibits sexual dimorphism.
Definition
Medial Preoptic Area
Term
Controls the temperature set point. Responsible for temperature dissipation functions
Definition
Anterior Nucleus
Term
Secretes both DA and gnRH, has endocrine and ANS control functions. Monitors leptin/insulin levels.
Definition
Arcuate Nucleus
Term
Short term memory
Definition
Lateral Mammillary Nucleus
Term
Arousal center, uses Histamine
Definition
Medial Mammillary Nucleus
Term
Satiety center
Definition
Ventromedial Hypothalamic Nucleus
Term
Sham Rage center
Definition
Dorsomedial Hypothalamic Nucleus
Term
Feeding center
Definition
Lateral Hypothalamic Nucleus
Term
Can quickly secrete Oxytocin or Vasopressin to regulate parturition, lactation, blood pressure or water balance (2 nuclei)
Definition
Paraventricular Nucleus
Supraoptic Nucleus
Term
Secretes CRH to stimulate ACTH release in the adenohypophysis
Definition
Paraventricular Nucleus
Term
Major controler of blood pressure. Receives input from limbic system, influences brainstem visceromotor centers
Definition
Paraventricular Nucleus
Term
Vomiting center
Definition
Area Postrema
Term
Osmoreceptive complexes that influence the Paraventricular Nucleus and the Supraoptic Nucleus (2).
Definition
Subfornical organ (SFO) and the Organum Vasculosum Lamina Terminalis (OVLT), both circumventricular sensory organs.
Term
Secretory circumventricular organs (3)
Definition
Pineal Gland, Median Eminence, and the Neurohypophysis
Term
Major thirst regulator
Definition
Medial Preoptic nucleus
Term
Responsible for heat conservation mechanisms
Definition
Posterior Hypothalamic Nucleus
Term
Receives retinal input, controls light based rhythms
Definition
Suprachiasmatic Nucleus
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