Answer: Nerve cells and muscle cells
Step-by-step explanation:
The nerve cells and the muscles cells of the body plays important role in the conduction of the signals.
Calcium ion helps in the signal conduction so its role is majorly important in nerve cells and muscle cells.
The calcium signalling can be defined as the use of calcium ions for the cellular signalling, it enters the cytoplasm and exerts allosteric regulatory enzymes in many of the proteins and enzymes.
This derives many intracellular processes and signal transmission is one of the following.