Back مقاومة وعائية Arabic Gefäßwiderstand German Resistencia vascular Spanish Résistance vasculaire French Resistenza vascolare Italian 혈관 저항 Korean Karmotstand NN แรงต้านของหลอดเลือด Thai Судинний тонус Ukrainian
Vascular resistance is the resistance that must be overcome for blood to flow through the circulatory system. The resistance offered by the systemic circulation is known as the systemic vascular resistance (SVR) or may sometimes be called by the older term total peripheral resistance (TPR), while the resistance offered by the pulmonary circulation is known as the pulmonary vascular resistance (PVR). Systemic vascular resistance is used in calculations of blood pressure, blood flow, and cardiac function. Vasoconstriction (i.e., decrease in blood vessel diameter) increases SVR, whereas vasodilation (increase in diameter) decreases SVR.