BSC 1086C Lecture Notes - Lecture 5: Bone Marrow, Oncotic Pressure, Erythropoiesis
Document Summary
A connective tissue composure of: plasma, formed elements. Color scarlet to dark red depending on oxygenation. ~8% of body weight; average volume: 5-6 l (1. 5 gallons) for males, and 4-5 l for females. The thickness or viscosity of blood is mainly determined by the amount of red blood cells. Hematocrit- percent of blood volume that is rbcs: 47& +- 5% for males, 42% +- 5% for females. Distribution of: o2 and nutrients to body cells, metabolic wastes to the lungs and kidneys for elimination, hormones from endocrine organs to target organs. Regulation of: body temperature by absorbing and distributing heat, normal ph using buffers, adequate fluid volume in the circulatory system. Protection against: blood loss and infection. Proteins are the most common solutes by weight: mostly produced by the liver. 36% globulins (functional proteins, such as enzymes or antibodies) 4% fibrinogens (most important blood clotting factor)
