Which of the Following Is Essential in Order to Maintain

question 45

Multiple Choice

Which of the following is essential in order to maintain serum pH within normal range?

• A) Carbonic acid and bicarbonate ion must be present in equal quantities.
• B) All excess carbonic acid must be excreted by the kidneys.
• C) The concentration of bicarbonate ion must remain constant.
• D) The ratio of carbonic acid to bicarbonate ion must be 1:20.

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Definitions:

All-or-none Principle

A principle stating that a neuron either fires at full amplitude or not at all, depending on whether the stimulus reaches the threshold level.

CNS

The central nervous system, consisting of the brain and spinal cord, responsible for processing and sending messages to and from the body.

Presbycusis

Age-related hearing loss, typically occurring in both ears, progressing gradually as a person ages.

-cusis

A suffix pertaining to hearing, used in medical terms related to hearing conditions.