The other planets: Mercury was the Roman messenger of the gods. Venus was the Roman goddess of love. Mars was the Roman god of war. Jupiter was another name for Jove, Roman god of the skies and king of the gods. Saturn was the Roman god of time and the harvest, and Jupiter's father.
Pulse pressure is the difference between the systolic and diastolic pressure readings. It is measured in millimeters of mercury (mmHg). It represents the force that the heart generates each time it contracts. If resting blood pressure is (systolic/diastolic) 120/80 millimeters of mercury (mmHg), pulse pressure is 40. pulse pressure is considered abnormally low if it is less than 25% of the systolic value. The most common cause of a low (narrow) pulse pressure is a drop in left ventricular stroke volume.
mean arterial pressure. An average of the blood pressure over the cardiac cycle, roughly equal to the diastolic pressure plus one third of the difference between the diastolic and the systolic pressure (i.e. the pulse pressure). an average; a numerical value intermediate between two extremes. Called also arithmetic mean. mean arterial pressure. The intraarterial pressure that would exist at the output node of the heart if there were no arterial pulse, calculated as diastolic pressure + (systolic pressure minus diastolic pressure)/3.