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hypothalamic-pituitary-adrenal axis |
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hypothalamic-pituitary-adrenal axis,
the combined system of neuroendocrine units that in a negative feedback network regulate the adrenal gland's hormonal activities. hypothalamic-pituitary-adrenal axis A tightly-linked, interdependent endocrine unit which, with the systemic sympathetic and adrenomedullary systems, comprises a major peripheral limb of the stress system, the main function of which is to
maintain basal and stress-related homeostasis; the hypothalamus and pituitary form the central part of the HPA axis, and are active even at rest, responding to blood-borne or neurosensory signals–eg, cytokines–eg, IL-1, IL-6,
TNF-α; at the highest level, CRH and noradrenergic neurons innervate and stimulate each other, which is controlled by an autoregulatory, ultrashort negative-feedback loop, in which CRH and noradrenergic collateral fibers inhibit presynaptic
CRH and α2-noradrenergic receptors. Cf Hypothalamic-pituitary axis. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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But, unlike beer and red wine, white wine completely switched off the HPA axis, indicating hunger remained low. Abnormalities in the function of the HPA axis have been described in people experiencing anxiety disorder? The HPA axis (hypothalamus-pituitary-adrenal axis) controls the body's response to stress (the fight-or-flight reaction to physical or psychological stress). |
HPA axis |
HP-PLM HP-POA HP-RDI HP-REI HP-RTL HP-shape HP-SUX HP-TIM HP-UNEQ HP-UX HP-UX HP-UX Memory Management HP-VUE Hp.com HP/C HP/CP HP/DP HP/GW HP/UX HP1 HP2 hp22 HP2HT hp2ps HPA HPA HPA axis HPA-1HPAA HPAB HPABA HPAC HPAD HPAE HPAEC HPAEC-PAD HPAECCM HPAF HPAFP HPAG HPAI HPAIED HPAIR HPAL HPALA HPAM HPAMC HPAML HPAN HPANA HPANDF | ||||||||
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