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.
1 Eosinophillic parietal cells in the neck of the gastric glands, that produce hydrochloric acid gastric intrinsic factors to aid in digestion and vitamin B12 absorption, respectively.  And basophillic zymogenic cells in the base of the gastric glands, that stores and releases pepsinogen, which is converted into pepsin.