Delfos, R.W.

embryo volume pressure-volume pressure chick stage wall volume chick embryo venou development heart relation function diastolic pressure-volume loop analysis venous clip model end-systolic model control analysis ventricle control embryos pressure-volume relations phase gittenberger-de groot ac 2 m nacl clipping end-diastolic relationship signi hemodynamic pressure-volume loops signi ficantly difference physiol point systolic parameter video imaging contractility stiffness study change venous obstruction dp /dtmin video control embryo obstruction vitelline morphogenesi relaxation result cycle /dtmin effect keller loading conditions contraction cavity volume venous clipping myocardium vitelline vein frequency espvr lling blood hoger baseline figure netherland response method hemorrhage signal group slope fi lling ϯ sem signi ficant difference flow tract anomalies