In order to communicate with multiple cells at the same time, an axon may branch along its length, producing side branches called . In order to communicate with multiple cells at the same time, an axon may branch along its length, producing side branches called .

Collaterals

Explanation:

 According to the given question, the collateral is one of the side branch in the blood vessel and it is also known as the subordinate part in the vessel.

The main function of the collateral is that it basically developing the shunt blood circulation at the block vein or artery areas and plays an important role at the time of surgeries.

An axon is basically branch producing the branches at the similar time for the communication purpose is know as the collateral. Therefore, Collaterals is the correct answer.

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