BISC276 Lecture Notes - Lecture 19: Blood Vessel, Leukopenia, Leukocytosis
20 Dec 2016
School
Department
Course
Professor
Document Summary
Physical characteristics of blood: viscosity, temperature, ph, volume, blood samples for laboratory testing may be obtained by: greater than that of water. Venipuncture: most common, tourniquet above site, clench fist, hypodermic needle. Arterial stick: when blood o2 levels are needed, riskier. Components of blood: blood: 55% plasma and 45% formed elements, plasma: 91. 5% water and 8. 5% solutes. Principal solutes include proteins (albumins, globulins, and fibrinogen), nutrients, enzymes, hormones, respiratory gases, electrolytes, and waste products. Albumins: smallest and most numerous blood plasma-proteins; produced by liver. Function as transport proteins for several steroid hormones and for fatty acids. Globulins: produced by liver and by plasma cells, which develop from b lymphocytes. Usually the sample is taken from the iliac crest or the sterum. 1: there are several means for athletes to increase their hematocrit (induced polycythemia) in an attempt to boost the oxygen-carrying capacity of their blood before an athletic event.
