Question

Give me a answer of 15(ii) question..

Answer 1

Nerve ending send the signal in form of chemical which then passed through Syneptic cleft.

Answer 2

$The researchers found the nerves extend into the epidermis with filament-like nerve endings, which are encircled by the Langerhans cells. The nerve cells secrete a chemical known as calcitonin gene-related peptide, or CGRP, which is normally used to transmit messages between nerves.$

hence , the nerve endings secretes the chemical known as calcitonin Gene related peptide or we can say that cgrp

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