Medical Dictionary. arrhythmia. play. noun arÂ·rhythÂ·mia \Ä-Ërith-mÄ-É\. Medical Definition of arrhythmia. : an alteration in rhythm of the heartbeat either in time or force.
Central metabolism provides mechanisms for the generation of energy from carbon-energy source catabolism and the production of biosynthetic precursors and intermediates for the anabolic pathways essential to maintain cell structure and function.
The blood is used to transport carbon dioxide out of the body. All the body organs and tissues require oxygen to perform their functions and to stay alive. The waste product of the process of metabolism is carbon dioxide. Some of the carbon dioxide is dissolved in the blood which then forms other compounds that may be waste or useful to the body. The rest of the carbon dioxide is passed into the lungs from where it diffuses into the air and is passed out during breathing.