blood%20ahs132%20exam%201 - blood Transports o2 co2...

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9/29/15 blood - Transports: o2, co2, nutrients, hormones, immune system and waste products o Kreb cycle uses o2 and releases co2 o Nurtients – organic – carbohydrates, fatty acids - B-lymphocyte becomes a plasma cell then immunoglobulin - Functions of the blood o Glucose amino acids electrolytes – transported via plasma o Regulate PH and ions – 7.34-7.45 – ph too low = acidosis, ph too high = alkalosis – protiens and ions maintain PH (Na+, K+, Cl-) o Fluid loss at injury sites o Defense against toxins and pathogens o Stabalization of body temperature o Plasma – water, disolved plasma protien(clotting factors), other solutes Three types of formed elements 1. RBC (erythrocytes) – carry oxygen and remove CO2 2. WBC (Leukocytes) – immune system 3. Platelets – cell fragments involved in clotting Hemopoiesis – produce formed elements by myeloid (neutrophil eosinphil basophil erythrocytes and monocytes) and lymphoid (cd8, b cell, helper T cell, natural killer cells) stem cells – cytokines stimulate stem cells to mature Fractionation – process of seperating whole blood for clinical analysis into plasma and formed elements Three characteristics of blood 1. 38c 2. high viscosity 3. slightly alkaline 4. blood volume = 7% of body weight - adult male 5-6 liters - adult female 4-5 albumin 60% - transport – fatty acid, thyroid hormones and steroid hormones globulins 35% - antibodies (immunoglobulins) – hormone binding protiens, metalloprotiens, apoliprotiens and steroid binding protiens fibrinogen 4% - forms clot, produce long insoluable strands of fibrin serum – liquid part of a blood sample- dissolved fibrinogen has converted to solid fibrin – no clotting factors
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