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Residual volume is the amount of air left in the lungs after a maximal exhalation

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16y ago

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How do you calculate tidal volume in a cat?

Tidal volume is the total amount of air in your lungs that is inhaled/exhaled at one point. Tidal volume is found by using a machine to calculate it. Or, it is:Insiratory reserve volume+expiratory reserve volume+tidal volume+residual volume.REVISIONYour definition of tidal volume is correct...it is the amount of air that moves in or out of the lungs during normal inspiration or expiration, but the equation you gave (IRV + Vt +ERV + RV) is for Total Lung Capacity.I don't believe that there is an equation to calculate tidal volume. It can be calculated, however, by subtracting your average ERV (expiratory reserve volume) from your average EC (expiratory capacity). Using a spirometer, perform the procedure to get your expiratory capacity. Do this 3 times and figure the average. Then perform the procedure to get your expiratory reserve volume and repeat 3 times to figure your average. Then, as I mentioned in the 1st line of this paragraph, subtract your average ERV from your average EC.


How can you explain that air has weight?

Experiments which can prove that air has mass and therefore weight abound, but I'll give a simple thought experiment here which indicates that air must be massive. Assume that the atmosphere of the earth has some pressure P at the surface of the planet (reasonable, as many homes have barometers which measure just that), and determine what the pressure will be at other altitudes. Pressure exerts a force proportional to the value P and the surface area A of the face of the volume you are considering out of the volume, this is its definition. If that force is not balanced by another force on the face of that volume then the air will reapportion itself until the forces are balanced, which will lead to a different pressure. If air has no mass then the force of weight does not contribute to the overall force on any volume of air, and it can only be balanced by an equal pressure immediately above it. This is true of any volume of air, not just those at the surface. Thus we see that if air had no mass then the atmosphere would have to extend throughout all space to remain pressurized at a fixed value. Since this is clearly not the case according to repeated measurements of atmospheric pressure at altitude, as well as being contradicted by the many space missions which have been performed, air must be massive.


What is the air chamber of the egg?

Just before hatching begins, the air cell expands to approximately 30% of the internal volume of the egg. As hatching begins, the beak of the embryo penetrates the inner shell membrane where it forms the inner wall of the air cell. The lungs begin to function, inhaling the air from the air cell.


Why are some egg whites thicker than others?

As you whisk them you are putting air into them,much like inflating a tire.


What is normal tidal volume in dogs?

a Rabbit weighing 2.4kg the tidal volume is 15.8ml

Related Questions

The air remaining in the lung after a maximal expiration is the?

residual volume


What is the difference between functional residual capacity and residual volume in the context of pulmonary physiology?

Functional residual capacity (FRC) is the volume of air remaining in the lungs after a normal exhalation, while residual volume (RV) is the volume of air remaining in the lungs after a maximal exhalation. FRC includes both the expiratory reserve volume and the residual volume, while RV is the volume of air that cannot be exhaled from the lungs.


What type of air is residual volume?

Residual volume is the air that remains in the lungs after a maximal exhalation. It is considered a type of "stale" or stagnant air that cannot be voluntarily expelled and helps keep the lungs inflated.


Which volume of air is not included in the vital capacity?

residual (reserve) volume


Why residual volume cannot be measured with a spirometer?

Residual volume cannot be measured with a spirometer because a spirometer measures the volume of air that can be inhaled or exhaled, but it cannot measure the air that remains in the lungs after maximal exhalation. This leftover air, known as residual volume, is not accessible for measurement since it is trapped in the alveoli and airways. To assess residual volume, other techniques like body plethysmography or gas dilution methods are used.


The amount of air that can no be exhaled is called?

The residual volume is the volume of air remaining in the lungs after the most powerful expiration.


The lungs contain a certain amount of air that cannot be forced out the volume of air is known as what?

this is called residual volume.


What volume is not included in the vital capacity?

The volume not included in the vital capacity is the residual volume (RV). Residual volume is the amount of air that remains in the lungs after a maximal exhalation and cannot be voluntarily expelled. Vital capacity, which consists of tidal volume, inspiratory reserve volume, and expiratory reserve volume, measures the maximum amount of air a person can exhale after a deep breath, excluding the residual volume.


What is meant by residual volume with reference of breathing?

Exhalation is a passive action that results from elastic recoil and changes in air pressure. When this happens naturally a portion of air remains within the lungs- residual volume. However when exhalation is forced, that is conscious efforts to expel as much air as possible, many of the residual volume can be forced out of the lungs.


The amount of air remaining in the alveolus after expiration is referred to as what?

residual volume


What is the difference between tidal volume and residual volume and pulmonary?

Tidal volume is the volume of air that moves in and goes out in asingle stroke, and is abut 500ml.


What is the amount of air remaining in the lungs even after the greatest possible expiratory effort?

residual volume