Imebsa n tgunin n kalcium d asenẓen n tmerwin n lelkansiyen (Ca²⁺) deg wamlalen n tmetniwin. Imiren-a ttattaɣen-a s waṭas d ameqran deg tɣawsiwin, seg tqeqqel n tmeɣlif n tmeɣlif n tmeɣlif n tsusna. Tigiwin n tcalcium ddunt i waṭas n tmeɣliyen n tneqqen n tmeɣliyen, ttwalt n tnebbit n tnebbit n tneqqel n yisem.