The residual volume is the volume of air remaining in the lungs after the most powerful expiration.
residual volume
Volume that can be exhaled during forced breathing in addition to tidal volume is call Expiratory Reserve Volume (ERV).Holes Essentials of Human Anatomy & Physiology, Tenth Edition, 2009
residual volume
Inspiration should equal to expiration;IE ratio and IT , inspiration equals tidal volume. It means that the patient is having trouble breathing.
During expiration, the diaphragm and intercostal muscles relax, causing the thoracic cavity to decrease in volume. This decrease in volume increases the pressure within the thorax, which pushes air out of the lungs. This process facilitates expiration by creating a pressure gradient that allows air to flow out of the lungs.
If an object's volume remains constant but its mass is increased, its density will also increase. Density is defined as mass divided by volume, so if the volume stays the same while the mass increases, the density will increase as well.
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If the temperature remains constant, decreasing the volume will increase the pressure.
The greatest volume of air that can be expelled when a person performs rapid, forced expiration.
A substance that cause or speeds up a chemical reaction while the substance itself remains unchanged
The volume of the solid remains the same.