Department Systolic pressure Diastolic pressure Mean pressure Right atrium 3-7 -2-2 -2-7 Right ventricle 15-30 0-7 10-20 Pulmonary artery 15-30 5-10 5-12 Pulmonary capillaries 5-12 Left atrium 5-10 Left ventricle 80-130 5-10 60-90 Aorta 80-130 60-90 70-90 Units: mg hg