Biological Chemistry - Berezov T. T., Korovkin B. F. 1998

Muscle tissue
Chemical composition of striated muscle
Nitrogen-free substances

One of the primary representatives of non-nitrogenous organic substances in Muscle Tissue is Glycogen. Its concentration ranges from 0.3 to 2% and higher. Other CARBOHYDRATES account for only tenths and hundredths of a percent. The Muscles contain merely traces of free glucose and very small amounts of hexose phosphates. During the METABOLISM of glucose and Amino Acids in muscle tissue, lactic acid, pyruvic acid, and numerous other carboxylic acids are formed. Triglycerides and Cholesterol are also found in muscle tissue in varying quantities.

The composition of inorganic salts in muscles is diverse. Among the cations, potassium and sodium predominate. Potassium is concentrated mainly inside the muscle fibers, whereas sodium is located predominantly in the Extracellular matrix. Magnesium, calcium, and iron are present in significantly smaller amounts. Muscle tissue also contains A number of Trace Elements, including cobalt, aluminum, nickel, boron, and zinc, among others.



Last update: 06/08/2026

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