Note: You may change these portions to the fat - bomb size of your heart's content, keeping the ratios consistent. (mindbodygreen.com)
For example, one can not actually determine the physical size of a heart chamber by merely listening with a stethoscope (auscultation). (patrickmahaney.com)
In dogs, Dilatative Cardiomyopathy (DCM) causes the overall size of the heart to increase as the chambers increase in volume due to thinning of the heart muscle. (texaswestveterinarian.com)