BDNF	brain-derived neurotrophic factor
Cd	caudal domain
CGRP	calcitonin gene-related peptide
Cn	central domain
Cq	coccygeal
Cr	cranial domain
CRT	calretinin
CY3	conjugated streptavidin
DH	dorsal horn
DRG	dorsal root ganglia
DRGs	dorsal root ganglia neurons
EFS	electric field stimulation
FB	fluorescent retrograde tracer Fast Blue
FITC	fluorescein isothiocyanate
FSH	follicle stimulating hormone
GAL	galanin
GnRH	Gonadotropin-releasing hormone
GPR173	G protein-coupled receptor 173
IgG	immunoglobulin G
IR	immunoreactive
L	lumbar
LH	luteinizing hormone
Md	middle ganglion area
nNOS	neuronal nitric oxide synthase
NO	nitric oxide
OCT	the ‘optimal cutting temperature’ compound medium
P	peripheral domain
PACAP	pituitary adenylate cyclase-activating polypeptide
PBS	phosphate-buffered saline
PNS	peripheral nervous system
PNX	phoenixin
S	sacral
SD	standard deviation
SOM	somatostatin
SP	substance P
UB-ANs	urinary bladder afferent neurons