In mathematics, mean has several different definitions depending on the context. In probability and statistics, mean and expected value are used synonymously to refer to one measure of the central tendency either of a probability distribution or of the random variable characterized by that distribution.
Red Blood Cell Route through the Cardiovascular System. Let us follow a single red blood cell (RBC) through one full cycle along the circulatory pathway Remember that RBCs carry oxygen throughout the body.Since the blood travels endlessly, an arbitrary choice must be made of a starting point to describe the RBC's route.. The RBC is then pumped through the pulmonary valve into the pulmonary artery and on to the lungs. There the RBC gives off carbon dioxide and picks up oxygen. 4. The RBC returns to the heart through a pulmonary vein, enters the left atrium, passes through the mitral valve, and flows into the left ventricle. 5.
LIFE SCIENCE The Circulatory system transports food and gases throughout our body. only one layer thickThe blood vessels that carry blood away from your heart and transport it to all part of the body are called arteries. The blood is returned to the heart from all parts of the body by the veins. Healthy Circulatory System The heart circulates the blood throughout the body by pumping it to where it can supply nutrients and remove wastes. Factors Affecting the Respiratory System-SMOKING-The Contents of Cigarettes There are over 400 different chemicals in a cigarette.