The pressure of blood against the walls of a blood vessel or heart chamber. Unless there is reference to another location, such as the pulmonary artery or one of the heart chambers, it refers to the pressure in the systemic arteries, as measured, for example, in the forearm.
The force the blood exerts against the blood vessel walls.
The pressure of the blood in the arteries.
The force exerted on the wall of the blood vessel by the blood as a result of contraction of the heart (systole) or relaxation of the heart (diastole).
The force of circulating blood on the walls of the arteries. Blood pressure is taken using two measurements: systolic (measured when the heart beats, when blood pressure is at its highest) and diastolic (measured between heart beats, when blood pressure is at its lowest). Blood pressure is written with the systolic blood pressure first, followed by the diastolic blood pressure (for example 120/80).
The force of the blood against the walls of the arteries. It is measured in two ways: systolic pressure (the top number) and diastolic pressure (the bottom number).
Measured in millimeters of mercury, the amount of pressure exerted on the wall of an artery. Normal is considered to be in the range of 120 systolic and 70 diastolic written as 120/70.
The pressure, measured in millimetres of mercury, at which the blood is pumped round the body by the heart.
The pressure exerted on the vascular tree by the pumping action of the heart. Normal blood pressure is 120 (systolic) over 80 (diastolic) mm mercury. Pressure is measured by a sphygmomanometer.
Blood pressure is the pressure exerted by blood against the walls of the blood vessels. Systolic blood pressure is the blood pressure during the contraction of the heart, while diastolic blood pressure is the pressure during the relaxation phase of the heart. When a person has high blood pressure, he or she is considered to have hypertension. Conversely, low blood pressure is referred to as hypotension.
Force of blood on the walls of the arteries resulting from the squeezing effect of the heart’s left ventricle (systole), with residual maintenance (diastole) as the heart chambers relax and expand. Blood pressure is usually measured using a sphygmomanometer placed at the brachial artery in the arm, as the force needed to raise a column of mercury and expressed in millimeters (mm) of mercury (Hg) as a fraction, the upper number representing the systolic pressure, the lower number the diastolic pressure. Blood pressure varies with age, sex, condition of the arteries, force of the heart muscle contraction, emotional state, and general health of the arteries and heart. Adult blood pressure is usually considered normal at about 120/80 mm Hg; in children it is lower. High blood pressure is termed hypertension; low blood pressure, hypotension.
Force exerted by the circulating blood on the arterial walls at the points of contraction (diastolic) and filling (systolic).
The pressure of the circulating blood against the walls of the blood vessels. Pressure is highest during systole, the phase during which the heart contracts and forces blood into the arteries. Pressure is lowest during diastole, when the heart muscle relaxes. Average pressure may be measured in millimeters of mercury (mm Hg) with an instrument called a sphygmomanometer. A pressure of 120 (systolic) over 80 (diastolic) mm Hg is considered normal. Normal blood pressure varies from one person to another depending on such factors as age, activity, weight, and health. Women tend to have somewhat lower blood pressures than men.
A measurement of the force exerted by the blood against the walls of the arteries. Blood pressure results from two forces. One is the force of the heart as it contracts; the other is the resistance of the arteries to blood flow, which is a function of their flexibility and size. In general, the more blood the heart pumps with each beat and the narrower and less flexible the blood vessels, the higher the blood pressure.
The pressure of blood against the walls of the main arteries. Pressure is highest during systole, when the ventricles are contracting (systolic pressure), and lowest during diastole, when the ventricles are relaxing and refilling (diastolic pressure). Blood pressure is measured (in millimeters of mercury) by means of a sphygmomanometer at the brachial artery of the arm, where the pressure is most similar to that of blood leaving the heart. The normal range varies with age, but a young adult would be expected to have a systolic pressure of around 120 mm and a diastolic pressure of 80 mm. These are recorded as 120/80.
Blood pressure is that pressure which must be applied to an artery in order to stop the pulse. It may be roughly estimated by feeling the pulse at the wrist, or accurately measured using a sphygmomanometer. It is dependent on the pumping force of the heart, together with the volume of blood, and on the elasticity of the blood vessels.
The tension exerted on the walls of arteries by the strength of the contraction of the heart; the resistance of arterioles and capillaries; the elasticity of blood vessels; the blood volume; and blood viscosity.
The force that blood exerts against the inside walls of a blood vessel.
Measure of how hard the circulating blood is pressing against the walls of the arteries.
The pressure exerted by the blood on the walls of the arteries. It is measured in millimeters of mercury (as 120/80 mm Hg).
Blood pressure refers to the force exerted by the flow of blood within the major arteries. It is measured at two distinct phases: systolic and diastolic. Systolic pressure, the higher value, corresponds to the contraction of the heart’s ventricles. Diastolic pressure, the lower value, is recorded during the relaxation phase of the ventricles between heartbeats. Diastolic pressure reflects the resistance encountered by the small arteries throughout the body and the workload placed on the heart. With each heartbeat, a pressure wave travels along the arteries, and this wave can be easily detected as the pulse.
Blood pressure is commonly measured using a device called a sphygmomanometer and is typically expressed in millimeters of mercury (mmHg). It should be noted that blood pressure can vary depending on factors such as age, individual differences, and different times within the same individual. A healthy young adult, while at rest, typically exhibits a blood pressure reading of approximately 120/80 (120 mmHg systolic pressure and 80 mmHg diastolic pressure). When blood pressure remains consistently elevated, it is referred to as hypertension, whereas abnormally low pressure is known as hypotension.
The pressure of the blood on the walls of the arteries. It is measured by a sphygmomanometer, which consists of a hollow rubber bag connected by a rubber tube to a column of mercury calibrated in millimeters and a small bellows. The bag is wound round the middle of the upper arm. The doctor listens through a stethoscope to the pulsation of the artery in front of the elbow. The rubber bag is then inflated until the arterial pulse sound can no longer be heard through the stethoscope, after which the pressure is released until the artery can be heard pumping again. The number of millimeters recorded on the mercury column at this point is referred to as the systolic pressure. Air pressure is further released slowly from the bag until the arterial pulse becomes quieter or even silent; the reading on the mercury column at this point is referred to as the diastolic pressure. Normal blood pressure in a healthy unemotional young adult is approximately 120 systolic and 80 diastolic. Nervous emotion and violent physical exercise cause temporary rises in blood pressure, but permanent rises may be due to heart and kidney diseases or to arteriosclerosis.