since the increased volume of the atria under acute hypoxia limits left ventricular distensibility additionally , the changes in left ventricular enddiastolic pressure-volume relationships observed in the early stage of hypoxia are mainly , or even entirely , the result of interaction of the various heart compartments , and not a reflection of alterations in myocardial tissue elasticity .
C0018787
heart
C0027061
myocardial tissue