RasheedaBodovsky RasheedaBodovsky

20-11-2014
Biology

contestada

Givenwhat you know about muscle contraction and neurophysiology, why are we willing

to
sacrifice bone density to maintain blood calcium?

Respuesta :

kongenoch kongenoch

24-11-2014

Without sufficient calcium in the blood, muscles cannot contract. Calcium needs to bind to troponin molecules in the muscles to activate action potentials. It is better to lose some structural strength in the bone than to have muscles that don't contract.

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