DUAL INNERVATION OF MAMMALIAN URINARY BLADDER - A HISTOCHEMICAL STUDY OF DISTRIBUTION OF CHOLINERGIC AND ADRENERGIC NERVES
DUAL INNERVATION OF MAMMALIAN URINARY BLADDER - A HISTOCHEMICAL STUDY OF DISTRIBUTION OF CHOLINERGIC AND ADRENERGIC NERVES
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DOI:
10.1002/aja.1001190305
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发表时间:
1966-01-01
影响因子:
--
通讯作者:
SCHENK, EA
中科院分区:
文献类型:
--
作者:
ELBADAWI, A;SCHENK, EA
The pattern of autohomic innervation of the urinary bladder was studied in the cat, dog, rabbit and rat, using specific hlstochemtcal technics for acetylcholinesterase and nor-eplnephrine. Choltaerglc and adrenergic ganglion cells exist tn all layers throughout the bladder wall. Large chollnergic and adrenergic nerve trunks coursing in the adventltial coat and deep lamina proprla branch into the muscularis. The terminal chollnergic ramifications form a neurotermlnal plexus which surrounds every smooth muscle cell in the bladder wall. The terminal adrenergic fibers are less abundant, do not form a plexus, and show regional variations in number at different levels and depths of the muscularis. These variations suggest that 2 regions of the bladder, namely the base and body, may be distinguished on the basis of differences In muscular innervation. In the lamina proprla chollnergic and adrenergic nerves are grouped as deep and superficial subepithelial nerves. The latter form networks of variable complexity and supply fibers to the epithelium. Throughout the bladder wall, the blood vessels have a dual chollnergic and adrenergic perivascular plexus from which fibers extend into the media. Although the baste pattern of Innervation is similar in the species studied, certain variations exist in the relative abundance and arrangement of epithelial and subepithelial nerves. The muscularis has a uniform cholinergic and a variable adrenergic innervation in different species.