A _________ is a subjective experience of the patient that cannot be observed by anyone else

Which of the following statements regarding normal gas exchange in the lungs is correct?

A. The oxygen content in the alveoli is highest during the exhalation phase. B. Oxygen and carbon dioxide diffuse across the alveolar walls and capillaries. C. The actual exchange of oxygen and carbon dioxide occurs in the capillaries. D. Blood that returns to the lungs from the body has a low carbon dioxide content.

Visualization is an example of a ________ distraction to help a patient reduce stress during dental treatment

Fill in the blank(s) with correct word