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  • Chemistry Fundamentals: Organic, Biochemical, and Metallurgical Chemistry
  • The central nervous system controls the voluntary muscle ...
Multiple choice

The central nervous system controls the voluntary muscle contraction .The metal necessary for the contraction of muscles is

  1. Iron

  2. Sodium

  3. Zinc

  4. Copper

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sodium and potassium are necessary for the electrical activities of the nerves and for the contraction of muscles.

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