Means osmotic pressure. Medical search. Frequent questions

In this chapter, we will study all about osmosis and osmotic pressure. (toppr.com)

Jacobus van 't Hoff found a quantitative relationship between osmotic pressure and solute concentration, expressed in the following equation: Π = i c R T {\displaystyle \Pi =icRT} where Π {\displaystyle \Pi } is osmotic pressure, i is the dimensionless van 't Hoff index, c is the molar concentration of solute, R is the ideal gas constant, and T is the absolute temperature (usually in kelvins). (wikipedia.org)
The proportionality to concentration means that osmotic pressure is a colligative property. (wikipedia.org)
All fluids in the body have a certain concentration, referred to as osmotic pressure. (nutrametrix.com)
This means that the concentration dependence of the osmotic pressure can be obtained, either from an experimental determination or from a theoretical model of the bulk properties of the colloidal system. (lu.se)
To exemplify the usefulness of the model when establishing the influence of different operating parameters, such as the transmembrane pressure, the fluid shear, or different solution properties, such as concentration, particle size, pH, and ionic strength, a model system of charged spherical colloidal particles is used. (lu.se)
It is true that osmotic pressure is a colligative property as it only depends on the concentration of the solution. (toppr.com)
This means that there is a higher concentration of potassium + chloride inside than outside, which also means a higher osmotic pressure. (iupac.org)
OsMCA1- suppressed plants showed retarded growth and shortened rachises, while OsMCA1 -suppressed cells carrying Ca 2+ -sensitive photoprotein aequorin showed partially impaired changes in cytosolic free Ca 2+ concentration ([Ca 2+ ] cyt ) induced by hypo-osmotic shock and trinitrophenol, an activator of mechanosensitive channels. (biomedcentral.com)
Osmotic pressure is a colligative property , meaning that the property depends on the molar concentration of the solute but not on its identity. (wikidoc.org)
With the purpose to use this energy to transform it into electricity, it has been developed a device with a semi-permeable membrane, when is placed between the solutions with different saline concentration, allows to equalize the concentration at a constant pressure or volume. (iieta.org)
The linear relation between the pressure measured with this device and the sucrose concentration were the experimental impetus for deriving vant Hoffs law. (tutordale.com)
Urea increased serum sodium concentration by a mean of 9.6 mmol/L (95% CI, 7.5-11.7 mmol/L). The mean increase in serum sodium after 24 hours was 4.9 mmol/L (95% CI, 0.5-9.3 mmol/L). Adverse events were few, mainly consisting of distaste or dysgeusia, and no case of ODS was reported. (bvsalud.org)
In the second system, we used osmotic pressure caused by the ion concentration change in the bathing solutions for the articular cartilage to deform them. (who.int)

Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. (wikipedia.org)
Potential osmotic pressure is the maximum osmotic pressure that could develop in a solution if it were separated from its pure solvent by a semipermeable membrane. (wikipedia.org)
The compartment containing the pure solvent has a chemical potential of μ 0 ( p ) {\displaystyle \mu ^{0}(p)} , where p {\displaystyle p} is the pressure. (wikipedia.org)
Osmotic pressure is the pressure that we need to apply to stop the flow of solvent molecules from a dilute solution to a concentrated solution through a semi-permeable membrane. (toppr.com)
We can stop the flow of solvent molecules through the membrane by applying external pressure. (toppr.com)
As we discussed at the beginning, the pressure that just stops the flow of solvent particles is the osmotic pressure. (toppr.com)
A perfect lubricant would be iso-osmolar , meaning it would have equal osmotic pressure, or its cells would have the same hydration levels as the cells of vaginal tissue, which is approximately 285-295 mOsm/kg, or milli-osmoles per kilogram of solvent. (goodcleanlove.com)
The osmotic pressure is defined to be the pressure required to maintain an equilibrium, with no net movement of solvent. (wikidoc.org)
The vapour pressure of a liquid decreases with addition of a non volatile solid solute because some molecules of the solvent on the surface are replaced by the molecules of the solute. (theachievereducation.com)
i) Volatile solute increases vapour pressure of solvent. (theachievereducation.com)
ii) non volatile solute lowers vapour pressure of solvent. (theachievereducation.com)
[8] Osmotic pressure is defined as the external pressure required to be applied so that there is no net movement of solvent across the membrane. (knowpia.com)

Secondary outcomes included the proportion of patients with osmotic demyelination syndrome (ODS), intracranial pressure, and resource use such as length of stay. (bvsalud.org)
Rapid correction of chronic hyponatremia can also cause dangerous complications ( osmotic demyelination ). (medlineplus.gov)

The blue dots represent particles driving the osmotic gradient. (knowpia.com)

In plant cells, the cell wall restricts the expansion, resulting in pressure on the cell wall from within called turgor pressure. (wikipedia.org)
Turgor pressure allows herbaceous plants to stand upright. (wikipedia.org)
The turgor pressure of a cell is largely maintained by osmosis, across the cell membrane, between the cell interior and its relatively hypotonic environment. (wikidoc.org)
The osmotic entry of water raises the turgor pressure exerted against the cell wall , until it equals the osmotic pressure, creating a steady state . (wikidoc.org)

As the cell membrane is permeable to water, the only way to establish the equilibrium is by adding some ions on the outside to compensate for the high osmotic pressure inside the cell, and that ion is sodium. (iupac.org)
Osmotic pressure in general refers to the pressure that must be maintained on either side of a cell membrane to prevent a solution, or solids dissolved in a liquid, from passing through that cell membrane. (thehealthboard.com)
These proteins are relatively large molecules, meaning that they do not readily pass through the cell membrane. (thehealthboard.com)
Analyses of cultured cells with altered levels of this putative Ca 2+ -permeable mechanosensitive channel indicate that OsMCA1 is involved in regulation of plasma membrane Ca 2+ influx and ROS generation induced by hypo-osmotic stress in cultured rice cells. (biomedcentral.com)
However, the direct effects of MCA proteins on osmotic-induced Ca 2+ influx through the plasma membrane and the osmotic signaling pathways are little understood. (biomedcentral.com)
Assuming the membrane does not break, this net flow will slow and finally stop as the pressure on the solution side becomes such that the movement in each direction is equal: dynamic equilibrium. (wikidoc.org)
This could either be due to the water potential on both sides of the membrane being the same, or due to osmosis being inhibited by factors such as pressure potential or Osmotic pressure. (wikidoc.org)
Using a membrane module array is possible to get brackish water, with a pressure corresponding to the osmotic pressure that represents hydraulic energy that could be transformed into electricity by well-known means. (iieta.org)

Regional anesthesia is contraindicated in the presence of actual or anticipated serious maternal hemorrhage , refractory maternal hypotension, coagulopathy, untreated bacteremia , raised intracranial pressure, skin or soft tissue infection at the site of the epidural or spinal placement, and anticoagulant therapy. (medscape.com)

This effect can be countered by increasing the pressure of the hypertonic solution, with respect to the hypotonic. (wikidoc.org)

Colloidal osmotic pressure refers specifically to the relevant pressure for a solution of plasma proteins. (thehealthboard.com)

The Pfeffer cell was developed for the measurement of osmotic pressure. (wikipedia.org)
Plot of data from Pfeffer for the osmotic pressure of sucrose solutions. (tutordale.com)

The model is based on the balance between a thermodynamic force, due to the osmotic pressure gradient, and a frictional force, due to the fluid flow around each particle. (lu.se)
Essentially that means your body can keep fluid where it belongs - in your bloodstream (and in the amniotic fluid). (naturalbirthandbabycare.com)
It's for the same reason protein is important - sodium, like albumin, help maintain osmotic pressure in the blood stream, which keeps fluid in the blood. (naturalbirthandbabycare.com)
But, if your blood doesn't have proper osmotic pressure, that fluid leaks into your tissues, causing swelling (light swelling at the end of the day is normal in pregnancy - massive swelling of the ankles, hands, and face are not). (naturalbirthandbabycare.com)
Under normal conditions, oncotic pressure tends to cause fluid to be drawn into the capillaries. (thehealthboard.com)

Furthermore, there are the proteins in the cell, which also adds to the osmotic pressure. (iupac.org)
Colloid osmotic pressure, also referred to as oncotic pressure, is a measurement of pressure exerted within the cardiovascular system by proteins found in blood plasma . (thehealthboard.com)
Proteins in blood plasma are used to measure colloid osmotic pressure. (thehealthboard.com)

Experimental data shows that this pressure is directly proportional to the molarity (number of moles of solute per litre of solution) of the solution at a certain given temperature. (toppr.com)

Osmotic pressure measurement may be used for the determination of molecular weights. (wikipedia.org)
The magnitudes of these pressures may provide insights into physiological health, the intensity of physical exertion, psychological stress factors and/other information of interest, yet they are currently unknown due to absence of means for non-invasive measurement. (rsc.org)
[11] In 1867, Moritz Traube invented highly selective precipitation membranes, advancing the art and technique of measurement of osmotic flow. (knowpia.com)

Too much sodium can cause your blood to retain water and put pressure on your arteries, Holley says. (thehealthy.com)
Here's one place potassium comes in: getting adequate potassium in your diet can help filter out excess sodium, lowering your blood pressure to a healthier range. (thehealthy.com)
The pooled mean baseline serum sodium was 125.0 mmol/L (95% CI, 122.6-127.5 mmol/L). The median treatment duration with oral urea was 5 days. (bvsalud.org)

These platforms incorporate an arrayed collection of unit cells each of which includes an opening to the skin, an inlet through which sweat can flow, a capillary bursting valve (CBV) with a unique bursting pressure (BP), a corresponding microreservoir to receive sweat and an outlet to the surrounding ambient to allow release of backpressure. (rsc.org)
Who could have guessed that capillary colloid osmotic pressure could affect the rest of the body so much? (thehealthboard.com)

That means it's essential for nerve impulses, muscle contraction, and maintaining a regular heartbeat. (thehealthy.com)

Why does equilibrium of ice and water only exist at 273K at normal pressure? (stackexchange.com)
Vapour pressure due to vapour of a liquid at a given temperature at equilibrium when rate of evaporation and condensation becomes equal. (theachievereducation.com)

The body's common osmotic pressure, which is isotonic, allows a consistent maintenance of body tissues. (nutrametrix.com)
Maintaining the proper pressure ensures that the body tissues maintain the proper levels of liquid and that too much liquid does not escape from the capillaries. (thehealthboard.com)

Isotonic, which means "same pressure," bears the same chemical resemblance of the body's blood, plasma and tears. (nutrametrix.com)
Two solutions which have the same osmotic pressures at a given temperature are Isotonic solutions. (toppr.com)

Osmotic pressure is the basis of filtering ("reverse osmosis"), a process commonly used in water purification. (wikipedia.org)
The water to be purified is placed in a chamber and put under an amount of pressure greater than the osmotic pressure exerted by the water and the solutes dissolved in it. (wikipedia.org)
The osmotic pressure of ocean water is approximately 27 atm. (wikipedia.org)
This raises the next issue with life in the water, osmotic pressure . (southernfriedscience.com)
On the other hand, increasing the tissue's osmotic pressure enables the explant to intake water, all solutes and growth regulators from the growth medium which results in high-frequency shoot regeneration. (intechopen.com)
Osmosis provides the primary means by which water is transported into and out of cells . (wikidoc.org)
Osteoporosis, a provide information on the health and acid-base balance, osmotic pressure, and disease affecting more than 28 million nutritional status of the civilian, normal water balance (1,4,6-8). (cdc.gov)
The pressure measured inside the water pipe and that on the specimen surface was calibrated. (who.int)
(2) , and a reduction in daily salt intake of 4.4 g can results increases food safety by reducing the water activity of a in lower blood pressure (3) . (who.int)
The uptake of water in surfactants is investigated by means of a sorption calorimeter. (lu.se)

However, molecular bases and regulatory mechanisms for early osmotic signaling events remain poorly elucidated. (biomedcentral.com)

The changes can be accounted for by changes of balance between the elasticity of the cell walls and the osmotic pressure across the walls. (microbiologyresearch.org)

As labor progresses, the descent of fetal head and subsequent pressure on the pelvic floor, vagina, and perineum, generates somatic pain, which is transmitted by the pudendal nerve (S2-4). (medscape.com)

Colloid osmotic pressure may be used for treating with IV fluids. (thehealthboard.com)

That means that there are more molecules in seawater than in our cells. (southernfriedscience.com)

Osmotic pressure is an important factor affecting biological cells. (wikipedia.org)
In animal cells excessive osmotic pressure can result in cytolysis. (wikipedia.org)
She explains that the mineral helps maintain osmotic pressure, a delicate balance that ensures our cells' healthy function and communication. (thehealthy.com)
On recognizing osmotic signals, plant cells initiate activation of a widespread signal transduction network that induces second messengers and triggers inducible defense responses. (biomedcentral.com)
Hypo-osmotic shock-induced ROS generation mediated by NADPH oxidases was also enhanced in OsMCA1- overexpressing cells. (biomedcentral.com)

Ans:- Vapour pressure of a liquid component in a solution is directly proportional to mole fraction of the liquid in liquid phase. (theachievereducation.com)

Some kinds of osmotic flow have been observed since ancient times, e.g., on the construction of Egyptian pyramids. (knowpia.com)

A spherical lesion found in a rib of a dead sperm whale that beached on Nantucket was likely caused by nitrogen bubbles that formed when the whale rose too rapidly from high-pressure depths. (southernfriedscience.com)
Because high blood pressure is a major-but often silent-risk factor for cardiovascular disease, potassium may help promote long-term heart health. (thehealthy.com)
It can occur as a result of cardiovascular disease or because of a rapid change in air pressure such as that experienced when climbing at high altitudes. (thehealthboard.com)
Although many therapeutic remedies focusing on hyperglycemia and high blood pressure have been used, many patients still suffer progressive and severe renal injury. (biomedcentral.com)
High blood pressure is one of food. (who.int)
hearing health and use of iPods and/or personal listening devices, demonstrated that a portion of Music has always been part of the diverse the students surveyed use their equipment at high cultures of humanity, establishing a link between sound pressure levels for extended periods of time. (bvsalud.org)

During periods of activity, sweat glands produce pressures associated with osmotic effects to drive liquid to the surface of the skin. (rsc.org)

Still, CDC data found that the mean potassium intake among Americans falls well below recommended levels. (thehealthy.com)

He named the phenomenon osmosis from the Greek o, meaning thrust or impulse. (tutordale.com)

By means of crystallographic analyses and studies in solution, it could be shown that the subdomain of N2-4 possesses a different fold when isolated than in the context of the G-domain of FtsY. (uni-marburg.de)

Although this publication is meant to provide freestanding and practical assistance in an office practice, the most appropriate use is in continuing education programs and workshops. (cdc.gov)

Osmoregulation is the homeostasis mechanism of an organism to reach balance in osmotic pressure. (wikipedia.org)

Research has also shown that there is an inverse relationship between potassium and blood pressure," says Siera Holley, a registered dietician nutritionist at The Ohio State University Wexner Medical Center. (thehealthy.com)
This means that potassium, in appropriate amounts, can be beneficial in lowering blood pressure and preventing hypertension. (thehealthy.com)
According to extensive research, there is a direct re- regulating the osmotic pressure of a living cell and pro- lationship between salt consumption and blood pressure ducing palatable food. (who.int)
Given es in parallel with increases in blood pressure. (who.int)
It also helps control blood pressure in women with preeclampsia by alleviating labor pain, and it blunts the hemodynamic effects of uterine contractions and the associated pain response in patients with other medical complications. (medscape.com)

The most common causes of myoglobinuria in adults are trauma, alcohol and drug abuse, usually in relation to muscle necrosis from prolonged immobilization and pressure by the body weight. (medscape.com)
This means that the body has less work to do in obtaining maximum absorption. (nutrametrix.com)
This paper introduces a thin, soft wearable microfluidic system that mounts onto the surface of the skin to enable precise and routine measurements of secretory fluidic pressures generated at the surface of the skin by eccrine sweat glands (surface SPSG, or s-SPSG) at nearly any location on the body. (rsc.org)
Dietary protein is used to produce albumin, which is used by the body to create proper osmotic pressure in the bloodstream. (naturalbirthandbabycare.com)

This will only increase the "osmotic pressure" of employees aka consumers bringing their personal devices to work. (forrester.com)
Publishing on IntechOpen allows authors to earn citations and find new collaborators, meaning more people see your work not only from your own field of study, but from other related fields too. (intechopen.com)

Advances in immunosuppressive therapy have put increasing pressure on the supply of donor organs, and medical personnel sometimes find themselves having to determine who among the potential recipients should receive a lifesaving graft. (britannica.com)

A lysin-damaged cell wall cannot withstand the cytoplasmic osmotic pressure, leading to bursting of the cell and death of the bacteria. (databasefootball.com)

In order for the solutions to remain within the circulatory system, appropriate pressure must be maintained within the blood vessels. (thehealthboard.com)

Plant tissue culture belongs to totipotency meaning that a whole plant can be reproduced from a single cell in growth medium. (intechopen.com)
7] Norway opens world's first osmotic power plant. (iieta.org)

The mean 24-hour, diurnal and nocturnal PWV were slightly higher in COVID-19patients than in controls by 0.1 m/s (p=0.67), 0.2m/s (p=0.37) and 0.2m/s (p=0.25) respectively. (bvsalud.org)
1.97 g/100 g) and non-industrial (2.16 g/100 g) nuts was higher than the Iranian standard (1.88 g/100 g), as was the mean salt content of non-industrial juice (0.79 g/100 mL versus 0.25 g/100 mL). (who.int)

the mean are weighted to produce national estimates, and are presented by sex and Anemia may be associated with iron age groups. (cdc.gov)

Their size also affects the tendency of liquids to move out of the capillaries, maintaining the proper amount of liquid and pressure inside these tiny blood vessels . (thehealthboard.com)

Population means, medians, and Data source woman: wellness for women over standard errors of the means were fifty. (cdc.gov)

Horses have one of the highest sweat rates of all mammals and can lose 1-12 liters of sweat per hour, meaning they can lose about 70% of their metabolic heat from evaporative sweat. (alltech.com)

Pharmacological analyses show Ca 2+ influx mediated by mechanosensitive Ca 2+ channels to influence induction of osmotic signals, including ROS generation. (biomedcentral.com)

You will feel yet more pressure to create a smart mobile strategy. (forrester.com)

Anatomy11

Organisms7

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Chemicals and Drugs51

Analytical, Diagnostic and Therapeutic Techniques and Equipment24

Phenomena and Processes57

Disciplines and Occupations2

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Osmosis and osmotic pressure1

Concentration13

Solvent12

Demyelination2

Particles1

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Pfeffer2

Fluid5

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