Arizona State University (ASU) BIO202 Human Anatomy and Physiology II Exam 1 Practice Exam

The amount of fluid typically found in the pericardial space is much less than 500 cc. Under normal physiological conditions, the pericardial space contains about 15 to 50 cc of serous fluid, which serves to reduce friction between the layers of the pericardium as the heart beats. This limited volume is important for the proper functioning of the heart, allowing it to move freely without excessive pressure or constriction.

A volume of 500 cc would indicate a pathological condition, such as pericardial effusion, where fluid accumulates due to inflammation, infection, or other underlying diseases. This could lead to compromised heart function and requires medical evaluation. Therefore, stating that there is normally about 500 cc of fluid in the pericardial space is incorrect.