The tree itself was donated to the city by the Magnifica ComunitÃ  di Val di Fiemme, a collective that manages the forests and pastures of an alpine valley in the Trentino region. â
Uncontrolled hypertension is defined by the American Heart Association (AHA) as blood pressure greater than 140/90 mm Hg (millimeters of mercury).
Pressure at which a blood vessel collapses and blood flow stops. Laplaceâs Law. Force acting on blood vessel wall is proportional to diameter of the vessel times blood pressure. Measurement of BP. Blood pressure cuff is inflated above systolic pressure, occluding the artery.ressure at which a blood vessel collapses and blood flow stops. Laplaceâs Law. Force acting on blood vessel wall is proportional to diameter of the vessel times blood pressure. Measurement of BP. Blood pressure cuff is inflated above systolic pressure, occluding the artery.