The erythrocyte deformability or flexibility of red blood cells enables the cells to pass through vessels with different lumens. In addition, erythrocytes change shape depending on the temperature and flow rate of the blood, with concomitant changes in blood viscosity. Abnormal shape is assumed by erythrocytes in the context of spherical or sickle cell anemia, … Erythrocyte Deformability: Function, Role & Diseases
During erythrocyte aggregation, red blood cells cluster together and clump together. The phenomenon is physiologic to some degree, especially in the smaller capillaries. In immune complex diseases, for example, this physiologic degree is exceeded. What is erythrocyte aggregation? In erythrocyte aggregation, red blood cells cluster together and clump together. Red blood cells are also called … Erythrocyte Aggregation: Function, Role & Diseases
Blood viscosity corresponds to the viscosity of blood, which depends on parameters such as blood composition and temperature. Blood does not behave like a Newtonian fluid but exhibits nonproportional and erratic viscosity. Pathological changes in viscosity are present, for example, in hyperviscosity syndrome. What is blood viscosity? Blood viscosity corresponds to the viscosity of blood, … Blood Viscosity: Function, Tasks, Role & Diseases
Pulmonary vascular resistance (PVR) is the resistance to flow of blood vessels in the pulmonary circulation. It is also called pulmonary vascular resistance and is used to regulate blood flow. What is pulmonary vascular resistance? Pulmonary vascular resistance (PVR) is the resistance to flow of blood vessels in the pulmonary circulation. Pulmonary vascular resistance is … Pulmonary Vascular Resistance: Function, Role & Diseases
The marginal flow of the blood is the blood flow in close proximity to the walls of the vessels. Especially in the smaller vessels, it is a plasmatic marginal current without leukocytes and erythrocytes, which has a much lower flow velocity than the central blood current. During inflammatory reactions, the marginal flow changes. What is … Marginal Current of Blood: Function, Tasks, Role & Diseases
Axial migration in blood flow causes deformable erythrocytes to displace into the axial flow by means of near-wall shear forces in smaller vessels. This creates low-cell marginal flows that prevent stenosis in capillaries. This effect is part of the Fåhraeus-Lindqvist effect and can be limited by changes in the shape of red blood cells (RBCs). … Axial Migration: Function, Tasks, Role & Diseases
Maternal diabetes mellitus – known in medicine as embryofetopathia diabetica – causes an increased risk of prenatal and postnatal complications in the child during pregnancy. Of particular importance is the extent of the blood glucose imbalance and its onset during pregnancy. What is embryofetopathia diabetica? Embryofetopathia diabetica refers to a prenatal developmental disorder of the … Embryofetopathia Diabetica: Causes, Symptoms & Treatment
Viscoelasticity combines the elastic properties of substances and the viscous properties of fluids, and in the human body it is mainly present in soft tissues in addition to blood. In the blood, the viscosity of the substance increases as part of the hyperviscosity syndrome. In soft tissues, disorders of viscoelasticity may occur in the context … Viscoelasticity: Function, Tasks, Role & Diseases
Plasma viscosity and blood viscosity are not the same thing, but they are directly related. Plasma makes blood flowable because it is composed mainly of water. When cellular plasma components increase, blood may lose its physiologic viscosity. What is plasma viscosity? Plasma has special fluid mechanics that are determined by different forces. Viscosity is a … Plasma Viscosity: Function, Tasks, Role & Diseases
