The autonomic pharmacology of the bladder.
The autonomic pharmacology of the bladder.
复制标题
膀胱的自主药理学。
DOI:
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发表时间:
1972
期刊:
影响因子:
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通讯作者:
N. Taira
中科院分区:
文献类型:
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作者:
N. Taira
The mammalian urinary bladder (ca11ed simply the bladder in the pres ent review) receives both parasympathetic and sympathetic innervations. However, the response of the bladder to parasympathetic nerve stimulation is particularly resistant to blockade by atropine, unlike that of the heart and the iris. Because of this atropine-resistance most pharmacological works on the bladder have been devoted to elucidation of the nature of parasympa thetic postganglionic fibers. The bladder consists of two functionally different units, the detrusor and the trigone, and the two units respond differently to sympathetic nerve stimulation and to exogenous catecholamines. Moreover, the responses show considerable species differences. Thus, the mode of ac tion of the released transmitter and of exogenous catecholamines have also been the main subject of the autonomic pharmacology of the bladder. By use of pharmacological tools that have been developed in the past two de cades some of these problems have been solved, but some still remain un solved. The present review is, thus, inevitably concerned with these prob lems. Information obtained by modern morphological techniques about ter mination of parasympathetic and sympathetic postganglionic fibers in the bladder appears helpful for pharmacological understanding of the nature of these fibers and their site and mode of action. Therefore, the present review starts with a brief account of this.