
Osmometric and Volumetric Thirst - Social Sci LibreTexts
Osmometric thirst is triggered by loss of volume from the intracellular fluid stores. This form of thirst is produced when the solute concentration or tonicity of the interstitial compartment (the fluid outside of the cell) is increased, causing water to move out of the cell.
Thirst - Wikipedia
Osmometric thirst occurs when the solute concentration of the interstitial fluid increases. This increase draws water out of the cells, and they shrink in volume.
The cellular basis of distinct thirst modalities - Nature
Oct 14, 2020 · Increased blood osmolality induces osmotic thirst that drives animals to consume pure water. Conversely, the loss of body fluid induces hypovolaemic thirst, in which animals seek both water...
Areas of the brain involved in thirst - Psychology Info
There are two types of thirst to which the body must respond. According to (Carson & Birkett, 2017) there is volumetric and osmometric thirst. Volumetric thirst is the regulation of intracellular and extracellular fluids to maintain proper amounts of water in the system.
Thirst - PMC - PubMed Central (PMC)
Thirst can also be regulated by anticipatory signals. Thus far, we have characterized thirst as a purely homeostatic response to deviations in the blood osmolality or volume. However, a substantial fraction of normal drinking behavior is not regulated by changes in the blood directly, and instead appears to anticipate those changes before they ...
APA Dictionary of Psychology
Apr 19, 2018 · thirst resulting from a loss of cellular fluids and a relative increase in osmotic pressure. Also called intracellular thirst; osmotic thirst. Compare hypovolemic thirst.
Thirst and Drinking Paradigms: Evolution from Single Factor …
Figure 1 summarizes the varied homeostatic responses that occur (e.g., the sensation of thirst) in response to osmotically driven intracellular dehydration (left side) and extracellular hypovolemia (right side) that includes reduced circulating blood plasma and blood pressure.
Osmotic thirst, Control mechanisms, Satiety mechanisms
As water is lost from the body the interstitial fluid is no longer able to replace water in the cells. This leads to osmotic (or osmometric) thirst and increased drinking. A simple way to demonstrate this is to ingest salt (for example, in the form of salted peanuts such as those given away in bars).The result is a higher concentration in the ...
OSMOMETRIC THIRST - Psychology Dictionary
Apr 7, 2013 · thirst stemming from a loss of cellular fluids and a general escalation in osmotic pressure. Commonly referred to as intracellular thirst.
OSMOMETRIC THIRST Definition in Psychology
Osmometric thirst is a unique form of thirst that is driven by changes in osmotic pressure of the extracellular fluid surrounding the organism. It is believed to be the primary mechanism of thirst in the majority of animals, including humans.
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