This extensively revised second edition traces the development of the basic concepts in cardiovascular physiology in light of the accumulated experimental and clinical evidence. It considers the early embryonic circulation, where blood circulation suggests the existence of a motive force, tightly coupled to the metabolic demands of the tissues. It proposes that rather than being an organ of propulsion, the heart, serves as an organ of control, generating pressure by rhythmically impeding blood …
What drives the circulation? In this comprehensive review of existing circulation models, the conventional view that the heart is a pressure-propulsion pump is challenged. The existing models fail to explain an increasing number of observed circulatory phenomena. A unifying circulation model is proposed in which the blood, responding to metabolic demands of the tissues, is the primary regulator of cardiac output. This new model arises from accumulated clinical and experimental evidence. The hea…
Your varicose veins have been injected with a special medication during a treatment called sclerotherapy. This medication causes a blockage in your varicose veins. This forces the blood to go around the blockage and travel through nearby healthier veins, increasing blood flow in your legs. This pamphlet gives specific directions to prevent blood clots from forming in your healthy veins. Mild side effects and a list of symptoms that require immediate medical attention are provided.