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Hace 1 día · Hypertension, also known as high blood pressure, is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. High blood pressure usually does not cause symptoms itself.
- Usually lifestyle and genetic factors
- None
- 9.4 million / 18% (2010)
- Lifestyle changes, medications
Hace 1 día · As the pressure rises within the cavities of the ventricles, the mitral and tricuspid valves are forced shut. As the pressure within the ventricles rises further, exceeding the pressure with the aorta and pulmonary arteries, the aortic and pulmonary valves open. Blood is ejected from the heart, causing the pressure within the ventricles to fall.
Hace 1 día · t. e. In physics, a force is an influence that can cause an object to change its velocity, i.e., to accelerate, meaning a change in speed or direction, unless counterbalanced by other forces. The concept of force makes the everyday notion of pushing or pulling mathematically precise.
- newton (N)
Hace 6 días · The Editors of Encyclopaedia Britannica. Last Updated: May 10, 2024 • Article History. hypertension. Also called: high blood pressure. Related Topics: chronic hypertension. renal hypertension. secondary hypertension. portal hypertension. malignant hypertension. (Show more) Recent News. May 9, 2024, 6:36 AM ET (News-Medical)
3 de may. de 2024 · Blood pressure, force originating in the pumping action of the heart, exerted by the blood against the walls of the blood vessels. The stretching of the vessels in response to this force and their subsequent contraction are important in maintaining blood flow through the vascular system.
- The Editors of Encyclopaedia Britannica
22 de abr. de 2024 · Evangelista Torricelli. Related Topics: mercury barometer. atmospheric pressure. barometric light. aneroid barometer. barograph. On the Web: Academia - The safety barometer (Apr. 22, 2024) Track the evolution of the barometer to measure atmospheric pressure from Galileo to Blaise Pascal and beyond.
19 de abr. de 2024 · Our blood pressure chart shows average blood pressure by age and sex, how it compares to normal blood pressure, and what is considered hypertension.
