BIOL 1175 Lecture Notes - Systolic Geometry, Fetus, Atrioventricular Node
Document Summary
Transportation: oxygen, nutrients, wastes, carbon dioxide, hormones and more. Regulatory functions: body temperature, water-salt balance and body ph. Formed elements: from cells produced in bone marrow. Plasma: 92%water and 8& salts and organic molecules. Albumins most abundant and important for plasma"s osmotic pressure as well as the transport of other molecules. Globulins transport lipids and fat soluble vitamins and some are antibodies. Fibrinogen important for the formation of blood clots. Red blood cells carries 23% of c02 (waste) The structure of red blood cell is important to their function. Contains about 280 million hemoglobin molecules and each hemoglobin molecule binds 4 oxygen. Production of red blood cell is controlled by negative feedback. Erythropoietin (epo) is excreted by kidney cells and moves to red marrow when oxygen levels are low. Old cells are destroyed by the liver and spleen. Any method of increasing the number of rbc"s to increase athletic performance. Allows more efficient delivery of oxygen and reducing fatigue.
