Carbon dioxide.
Carbon dioxide has the greatest stimulating effect on the respiratory center in the brain. High levels of carbon dioxide in the blood trigger an increase in breathing rate to help eliminate excess CO2 and maintain proper blood pH levels. Oxygen levels also play a role in respiratory regulation but to a lesser extent than carbon dioxide.
The greatest stimulation on the respiratory center in the brain comes from an increase in carbon dioxide levels in the blood. This triggers the respiratory center to increase breathing rate to eliminate excess carbon dioxide and restore normal levels of oxygen in the blood.
carbon dioxide
The respiratory system utilises oxygen from the environmrntal gases and expires carbon dioxide (CO2).
Carbon dioxide
Carbon dioxide
Carbon dioxide.
Carbon dioxide
The respiratory system moves oxygen in and carbon dioxide (CO2) out.
The greatest effect on respiratory centers is initiated by changes in carbon dioxide (CO2) levels in the blood. An increase in CO2 concentration leads to a decrease in blood pH (acidosis), stimulating chemoreceptors in the medulla oblongata to increase the rate and depth of breathing. Oxygen levels also play a role, but CO2 is the primary driver of the respiratory response. This mechanism helps to maintain homeostasis by regulating blood gas levels.
The gases that are exchanged are oxygen and carbon dioxide.
Respiratory System