Exchange of calcium between bone and extracellular fluid takes place under the influence of certain hormones:
(a) What will happen if more of Ca ++ is in extracellular fluid?:
(b) What will happen if very less amount of Ca ++ is in the extracellular fluid?
(a) It will cause reduced heart rate and increased contractility of the heart.
(b) it will cause tetani which is manifested as rapid spasms in muscles.