What Sends Blood Back to Heart? Factors Affecting Venous Return | Muscle Pump, Respiratory Pump etc. скачать в хорошем качестве

What Sends Blood Back to Heart? Factors Affecting Venous Return | Muscle Pump, Respiratory Pump etc.

📝 Find notes here: https://www.nonstopneuron.com/post/fa... Explore our entire animation video library: https://www.nonstopneuron.com/ ● Follow me at: • Instagram:   / nonstopneuron   • Facebook:   / nonstopneuron   Factors Affecting Venous Return: The pressure gradient from veins to the heart drives blood flow from veins to the heart. Sympathetic activity causes vasoconstriction and thereby increases venous return. Valves in veins counteract the effect of gravity and help in venous return. Activity in nearby muscles increases blood flow in the veins, by a mechanism called a muscle pump or venous pump. Respiratory activity creates negative pressure in the thorax, which helps pull the blood from the lower extremities. And finally, the suction effect by the heart itself also contributes to the venous return. Dr Vipul Navadiya DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.