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Viscosity of blood4/15/2023 ![]() ![]() RBC aggregation occurs at low shear rates, and increases blood viscosity and depends on both cellular (RBC aggregability) and plasma factors. The shear thinning property of blood is mainly attributed to red blood cell (RBC) rheological properties. ![]() Both hematocrit and plasma viscosity influence blood viscosity. 11Centre de Médecine du Sommeil et des Maladies Respiratoires, Hospices Civils de Lyon, Hôpital de la Croix Rousse, Lyon, Franceīlood viscosity is an important determinant of local flow characteristics, which exhibits shear thinning behavior: it decreases exponentially with increasing shear rates.10Laboratoire de Biochimie et de Biologie Moleìculaire, UF de Biochimie des Pathologies Eìrythrocytaires, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Lyon, France.9Laboratoire ACTES EA 3596, The Université des Antilles, Pointe-a-Pitre, France.8d’Hématologie et d’Oncologie Pédiatrique, Hospices Civils de Lyon, Lyon, France.7Laboratoire Carmen INSERM 1060, INSA Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Villeurbanne, France.6Unité Transversale de la Drépanocytose, Hôpital de Pointe-a-Pitre, Hôpital Ricou, Pointe-a-Pitre, France.5Département de Médecine, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.4Biologie Intégrée du Globule Rouge, The Université des Antilles, UMR_S1134, BIGR, F- 97157, Pointe-a-Pitre, France.3Biologie Intégrée du Globule Rouge, Université de Paris, UMR_S1134, BIGR, INSERM, F-75015, Paris, France.2Laboratory of Excellence GR-Ex, Paris, France.1Laboratory LIBM EA7424, Team “Vascular Biology and Red Blood Cell”, University of Lyon 1, Lyon, France.Regulation of electrolyte balance or fluid balance by removing salts from tissues to kidneys.Elie Nader 1,2†, Sarah Skinner 1,2†, Marc Romana 2,3,4, Romain Fort 1,2,5, Nathalie Lemonne 6, Nicolas Guillot 7, Alexandra Gauthier 1,2,8, Sophie Antoine-Jonville 9, Céline Renoux 1,2,10, Marie-Dominique Hardy-Dessources 2,3,4, Emeric Stauffer 1,2,11, Philippe Joly 1,2,10, Yves Bertrand 8 and Philippe Connes 1,2* Maintain water balance in the cells by transporting excess water to kidneys and sweat glands. ![]() It helps to maintain proper and constant body pH through buffering action. Note: -Blood helps in regulation of body temperature by absorbing, releasing or distributing heat. So, the correct answer is 'Systolic blood pressure'. Transport hormones from their sources to target sites and also enzymes from exocrine glands to cells. They transport metabolic wastes and toxins from tissues to kidneys and sweat glands. They transport respiratory gases between lungs and tissues. It plays an important role in the transport of nutrients from stomach, intestine and liver to tissues. Blood viscosity is mainly determined by hematocrit levels, plasma viscosity, and the deformability and aggregation of red blood cells (RBCs).Īdditional Information: -Blood pressure (BP) is the pressure of circulating blood against the walls of blood vessels. Viscosity, a basal parameter in rheology, is a major determinant of the shear stress imparted by blood flow, and plays an important role in maintaining vascular homeostasis. Hence, blood viscosity is important in maintaining systolic blood pressure. Increased blood viscosity requires a higher systolic blood pressure to ensure the same circulating volume of blood. Increase in systolic blood pressure with increase in blood viscosity is required to maintain the cardiac output. Similarly, when blood viscosity decreases, blood flow is increased. When blood viscosity increases, blood flow is reduced. There is a relationship between blood pressure and blood viscosity. Viscosity of blood is the measure of thickness and stickiness of blood. The Viscosity of blood is important in maintaining systolic blood pressure. The viscosity of blood is important in maintaining maximum pressure during one heartbeat. Conversely, when viscosity decreases, blood flow and perfusion will increase. Hint: If blood viscosity increases, then the total peripheral resistance (TPR) will necessarily increase, thereby reducing blood flow. ![]()
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