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| Describe the location of the hypothalamus.
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- The hypothalamus is in the ventral diencephalon in the floor of the third ventricle.
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| Name the 6 nuclei of the hypothalamus and their individual functions.
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- Paraventricular - Production of Oxytocin and ADH
- Supraoptic - Production of Oxytocin and ADH
- Suprachiasmatic - Circadian Rhythm and Biological Clock
- Lateral - Arousal
- Arcuate - Energy
- Mamillary - Wakefulness
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| Name the three things which the hypothalamus detects using direct receptors:
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- Termperature
- Osmolarity of the Blood
- Energy Balance
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| List the Hormones synthesised in the hypothalamus
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- ADH
- Oxytocin
- Thyrotropin Releasing Hormone (TRH)
- Growth Hormone Releasing Hormone (GH-RH)
- Gonadotrophin Releasing Hormone (GnRH)
- Corticotropin Releasing Hormone (CRH)
- Prolactin Releasing Hormone (PRL-RH)
- Growth Hormone Inhibiting Hormone aka Somatostatin (GH-IH)
- Gonadotrophin Inhibiting Hormone (GnIH)
- Dopamine (PRL-IH)
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| Locate the hypothalamus on this diagram:
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 Canine Brain Cross Section Courtesy of BioMed Image Archive |
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| Describe what is meant by Negative Feedback with respect to the hypothalamus.
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- The hypothalamus releases hormones which cause a response from other organs. The response then feeds back to the hypothalamus to limit the production of it's original hormone. This is a self-limiting system enabling the hypothalamus to control homeostasis.
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