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.
b | Correlation between plasma levels of leucine and fasting levels of HbA1c in AfricanâAmerican women with obesity and T2DM (blue circles) and those with obesity but no T2DM (green circles). Abbreviations: BCAA, branched-chain amino acid; IR, insulin resistant; T2DM, type 2 diabetes mellitus. Adapted from et al. PLoS ONE 5, e15234 (2010), which is published under a Creative Commons Licence owned by PLOS Â©. Figure 2: Persistent activation of mTORC1 links increased plasma BCAA levels to insulin resistance.