Cerebrospinal fluid calcium

Calcium is one of the most abundant elements in the body and is mainly distributed in the bones (99%). The calcium in cerebrospinal fluid is mainly distributed in extracellular fluid (0.2%), and the intracellular fluid is almost free of calcium. It is present in the blood in the form of bound calcium and free calcium, each of which accounts for half. Binding calcium is combined with proteins or other acid radicals; free calcium exists in the form of Ca ++, which is a part of the blood that directly exerts physiological functions. Combines calcium and free calcium to maintain homeostasis. Serum calcium refers to the calcium ion concentration in the serum. Calcium in serum reduces nerve-muscle excitability; maintains excitability and rhythm of the heart muscle and its conduction system; participates in muscle contraction; participates in the coagulation process; forms important physiological functions such as bones and teeth

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