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Noun1.osmoreceptor - sensory end organ that responds to changes in osmotic pressure
end organ - a specialized structure at the peripheral end of some motor or sensory nerve fibers
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n. osmorreceptor.
1. grupo de células cerebrales que reciben estímulos olfatorios;
2. grupo de células en el hipotálamo que responden a cambios en la presión osmótica de la sangre.
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Recently, aquaporin 4 has also been identified in the ADH-secreting neurons of the supraoptic and paraventricular nuclei in the hypothalamus that functions as a hypothalamic osmoreceptor and regulates body water balance.
TRPV4 functions as an osmoreceptor because it is sensitive to hypoosmotic swelling [29].
Carlson, "Angiotensin and osmoreceptor inputs to the area postrema: role in long-term control of fluid homeostasis and arterial pressure," Clinical and Experimental Pharmacology and Physiology, vol.
Vanilloid receptor-related osmotically activated channel (VR-OAC), a candidate vertebrate osmoreceptor. CeiM 103(3):525-535.
Increased fluid intake "did not reverse the low subcutaneous oxygen, perhaps because of chronic underhydration and osmoreceptor reset," she said.
An increase in vascular osmolarity triggers the release of antidiuretic hormone (ADH) from the posterior pituitary, primarily in response to osmoreceptor activation in the hypothalamus (McCance & Huether, 2002).
Osmoreceptors. Within the hypothalamus, osmoreceptor cells sense changes in ECF osmolality.
Molecular characterization of an aquaporin cDNA from brain: candidate osmoreceptor and regulator of water balance.
Old age is also thought to be accompanied by increased osmoreceptor sensitivity [3].
* Type 2: Defective osmoreceptor DI the increased plasma osmolarity fails to release stored ADH
With advancing age, osmoreceptor sensitivity appears to be maintained [1, 2] or to increase [3], whereas AVP release in response to standing appears to decline [4].
This could be because of inadequate AVP release owing to decreased stores or a change in release mechanism, or because of an inadequate stimulus to AVP release through dysfunction of the osmoreceptor cells.