1. Alex was 15 minutes late for A&P class. While searching for his pen, he thought he heard the instructor say something about the heart affecting water balance but he had thought it was the other way around. Alex just decided to ignore the whole thing. Bad move, Alex! Explain the relationship of the heart to fluid balance.
2 The term body fluid refers to body water and its dissolved substances.
3 A diuretic drug increases urine flow rate, thereby increasing loss of fluid from the body and decreasing the volume of body fluids.