Medicine General 95b23a07 What are nitrergic neurous ? A Post ganglionic neurons releasing nitric oxide B 1st order neurons releasing nitric oxide C Post ganglionic neurons releasing substance P. D 1st order neurons releasing calcitonin Gene related peptide High-Yield Explanation Answer-B. 1st order neurons releasing nitric oxideNitrergic neurons are nerye cells which have neurotransmitter NO.