Read the passage given below and answer the following questions from (i) to (v).
These highly specialized nerve cells which are responsible for communicating information in both chemical and electrical forms. These are of different types. It is the basic building block of the nervous system. They are similar to other cells in the human body in a number of ways, but there is one key difference between them and other cells. They are specialized to transmit information throughout the body.

(ii) The annotations 1 and 2 in the figure depict:
(1)