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Tag Archives: PVR

[Respiration][Circulation] Blood Flow to the Lung – General and Pulmonary Vascular Resistance

11-Sep-16

The lung receives blood flow via both the bronchial circulation and the pulmonary circulation. Bronchial blood flow constitutes a very small portion of the output of the left ventricle and supplies part of the tracheobronchial tree with systemic arterial blood. Pulmonary blood flow (PBF) constitutes the entire output of the right venticle and supplies the […]

Afterload and Its Components

21-Oct-15

Afterload Also see information about afteroad in Pharmacy Profession Forum at http://forum.tomhsiung.com/pharmacy-research-study-and-policy/physiology-and-pathophysiology/699-preload-and-afterload.html#post1130 Afterload in the intact heart reflects the resistance that the ventricle must overcome to empty its contents. It is more formally defined as the ventricular wall stress that develops during systolic ejection. Wall stress (σ), like pressure, is expressed as force per unit area […]

The Management of Hypertension (Pathophysiologic Basises)

10-Sep-15

Hypertension is a common diseases and is defined as persistently elevated arterial blood pressure of >= 140/90 mm Hg. Most of patients belong to essential hypertension and a small percentage belong to secondary hypertension for which the most common causes include renal dysfunction resulting from severe chronic kidney disease (CKD) or renovascular disease. Besides, certain […]