Carbon dioxide levels in the blood and in cerebrospinal fluid affect ph of these fluids. This enables the organism to sense a disturbance in gas levels as .

the medulla oblongata, which is in contact with cerebrospinal fluid, monitors pH and uses this measure to control breathing

Explanation:

Through homeostasis, a stable CSF(cerebral fluid) PH is maintained in the body, these process could include changes in cerebral blood flow, balancing of the CSF carbon dioxide level and also buffering of the brain.

Carbon dioxide can be reffered to as one of the fundamental regulators found in cerebral blood flow in our body.its regulations activities takes place in thecerebral spinal fluid which brings about the relaxation of muscle as well as it's contraction with high or low PH.Carbon dioxide are emptied into the venules and the circulating cerebrospinal fluid, . Though the level ofcarbon dioxide decreases in the cerebrospinal fluid as the body advance in age.The tension of CO2, is one of the factor in needed in knowing the acid/base equilibrium of the blood.

This helps the organism to sense the disturbance in the medulla oblongata, which is in contact with cerebrospinal fluid, monitors pH and uses this measure to control breathing

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.