Veins physically located within large muscle groups undergo…

Veins physically located within large muscle groups undergo compression as the muscles surrounding them contract, and they become decompressed as the muscles relax. Therefore, with normal cycles of contraction and relaxation, the veins are alternately compressed and decompressed pushing blood back to the heart.     What is being described in this statement?

Assume that one ventricle of a child’s heart has an EDV of 9…

Assume that one ventricle of a child’s heart has an EDV of 90ml, an ESV of 60 ml, and a cardiac output of 2.55 L/min.  What are the child’s stroke volume (SV), ejection fraction, and heart rate (HR)? SV = EDV – ESV CO = bpm x SV Ejection Fraction = SV / EDV