Appunti VERIFICATO
Appunti biomachines
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- Haemodynamics: describes physical factors governing blood flow within the circulatory system; blood flow (Q) through an organ is determined by perfusion pressure (ΔP) divided by resistance (R)
- Blood composition: erythrocytes (5·106/mm3, biconcave disc shape), leukocytes (4÷103-104/mm3, spherical shape, 5% of RBCs for immune defense), platelets (1.5÷4·105/mm3, flat disc shape, involved in haemostasis)
- Blood viscosity calculation: based on water viscosity and Poiseuille's law; factors include temperature, blood protein content, and vessel diameter; coagulation is a property related to the presence of proteins in biological fluids, necessary for natural repair but can lead to hemorrhage if interrupted
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