Fig. 5From: Ultrasound parameters of early pregnancy and Doppler indices of blood vessels in the placenta and umbilical cord throughout the pregnancy period in sheepColor Doppler ultrasound image showing hemodynamic measurements from the umbilical artery of a sheep on day 35 of pregnancy (PS - peak systolic velocity; ED - end-diastolic velocity; RI - resistance index; Ind. puls - pulsatility index). Red arrow – no EDBack to article page