Glossary. Calcitonin is a hormone known to participate in calcium and phosphorus metabolism. In mammals, the major source of calcitonin is from the parafollicular or C cells in the thyroid gland, but it is also synthesized in a wide variety of other tissues, including the lung and intestinal tract.
Statistics and Probability Dictionary. Select a term from the dropdown text box. The online statistics glossary will display a definition, plus links to other related web pages. Sample Space. A sample space is a set of elements that represents all possible outcomes of a statistical experiment .
Dead space (physiology). From Wikipedia, the free encyclopedia. In physiology, dead space is the volume of air which is inhaled that does not take part in the gas exchange, either because it (1) remains in the conducting airways, or (2) reaches alveoli that are not perfused or poorly perfused.hen the poorly perfused alveoli empty at the same rate as the normal alveoli, it is possible to measure the alveolar dead space. In this case, the end-tidal sample of gas (measured by capnography) contains CO 2 at a concentration that is less than that found in the normal alveoli (i.e. in the blood):