hello. i want to ask the various pressure value when talking about the heart and circulation...i am having difficulties in understanding some contents and i would like to ask you:
1. i saw some textbook said that the heart has a 0 mmHg ( especially when they are talking about body positioning and the heart )...why? don't the systolic and diastolic pressure play role on the cardiac pressure and it is about 120 and 80,respectively..but why some textbook said the heart has 0 mmHg ?
2.if it is so, because the heart 0 mmHg and the feet is 90 mmHg while standing..why doesn't the fluid goes up to the heart instead (because the pressure is higher in the feet) ?
please help..
thx u for the attention 🙂
warm regards,ketap
1. i saw some textbook said that the heart has a 0 mmHg ( especially when they are talking about body positioning and the heart )...why? don't the systolic and diastolic pressure play role on the cardiac pressure and it is about 120 and 80,respectively..but why some textbook said the heart has 0 mmHg ?
2.if it is so, because the heart 0 mmHg and the feet is 90 mmHg while standing..why doesn't the fluid goes up to the heart instead (because the pressure is higher in the feet) ?
please help..
thx u for the attention 🙂
warm regards,ketap