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  2. Hypothalamic–pituitary–adrenal axis - Wikipedia

    en.wikipedia.org/wiki/Hypothalamic–pituitary...

    Schematic of the HPA axis (CRH, corticotropin-releasing hormone; ACTH, adrenocorticotropic hormone) Hypothalamus, pituitary gland, and adrenal cortex The hypothalamic–pituitary–adrenal axis (HPA axis or HTPA axis) is a complex set of direct influences and feedback interactions among three components: the hypothalamus (a part of the brain located below the thalamus), the pituitary gland (a ...

  3. Papez circuit - Wikipedia

    en.wikipedia.org/wiki/Papez_circuit

    The circuit connects the hypothalamus and the cortex and acts as the emotional system of the brain. "The cingulate cortex projects to the hippocampus, and the hippocampus projects to the hypothalamus by way of the bundle of axons called the fornix. Hypothalamic effects reach the cortex via a relay in the anterior thalamic nuclei." [7]

  4. Corticotropin-releasing hormone - Wikipedia

    en.wikipedia.org/wiki/Corticotropin-releasing...

    CRH is secreted by the paraventricular nucleus (PVN) of the hypothalamus in response to stress. Increased CRH production has been observed to be associated with Alzheimer's disease and major depression, [6] and autosomal recessive hypothalamic corticotropin deficiency has multiple and potentially fatal metabolic consequences including ...

  5. Hypothalamus - Wikipedia

    en.wikipedia.org/wiki/Hypothalamus

    The hypothalamus is located below the thalamus and is part of the limbic system. [1] It forms the basal part of the diencephalon. All vertebrate brains contain a hypothalamus. [2] In humans, it is about the size of an almond. [3] The hypothalamus has the function of regulating certain metabolic processes and other activities of the autonomic ...

  6. Biology of depression - Wikipedia

    en.wikipedia.org/wiki/Biology_of_depression

    Depression may be related to the same brain mechanisms that control the cycles of sleep and wakefulness. Depression may be related to abnormalities in the circadian rhythm, [22] or biological clock. A well synchronized circadian rhythm is critical for maintaining optimal health.

  7. Releasing and inhibiting hormones - Wikipedia

    en.wikipedia.org/wiki/Releasing_and_inhibiting...

    The hypothalamus uses dopamine as a prolactostatin to tell the pituitary to inhibit prolactin; it is also created elsewhere in the brain and the adrenal cortex as a neurotransmitter to affect many other systems. The hypothalamus uses RFRP-3 in mammals or GnIH in avian species to inhibit GnRH.

  8. What Is Low Testosterone & What Causes It? - AOL

    www.aol.com/low-testosterone-causes-125700734.html

    But they can also affect men with low testosterone due to hypothalamus dysfunction. Remember: the hypothalamus is the part of the brain that signals the testicles to make testosterone. It also ...

  9. Hypothalamic–pituitary–gonadal axis - Wikipedia

    en.wikipedia.org/wiki/Hypothalamic–pituitary...

    HPG regulation in males, with the inhibin/activin system playing a similar role on GnRH-producing cells. The hypothalamus is located in the brain and secretes GnRH. [1] GnRH travels down the anterior portion of the pituitary via the hypophyseal portal system and binds to receptors on the secretory cells of the adenohypophysis. [2]

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