The most powerful respiratory stimulus for breathing in a healthy person is ________.

Question

Quizplus · Accepted Answer

An increase in carbon dioxide is the most powerful respiratory stimulus for breathing in a healthy person, as it leads to an increase in the acidity of the blood (respiratory acidosis), which triggers an increase in breathing rate and depth. Loss of oxygen in tissues and acidosis can also stimulate breathing, but not as strongly as an increase in carbon dioxide. Alkalosis, on the other hand, decreases respiratory drive.

The Most Powerful Respiratory Stimulus for Breathing in a Healthy