ORIGINS OF ADRENERGIC FIBERS WHICH INNERVATE INTERNAL ANAL SPHINCTER, RECTUM, AND OTHER TISSUES OF PELVIC REGION IN GUINEA-PIG
ORIGINS OF ADRENERGIC FIBERS WHICH INNERVATE INTERNAL ANAL SPHINCTER, RECTUM, AND OTHER TISSUES OF PELVIC REGION IN GUINEA-PIG
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DOI：
10.1007/bf00520326
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发表时间：
1973-01-01
期刊：
影响因子：
--
通讯作者：
FURNESS, JB
中科院分区：
文献类型：
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作者：
COSTA, M;FURNESS, JB
应用荧光组织化学技术检测盆腔脏器的肾上腺素能神经支配，应用于未经治疗的豚鼠和手术后神经通路中断的豚鼠组织。研究发现，在肠系膜下神经节内的肾上腺素能神经元产生轴突，轴突在结肠神经中运行，最终到达肠系膜下丛和粘膜下丛以及结肠远端动脉周围。在直肠，部分肌丛神经支配和所有粘膜下丛神经支配都来自肠系膜下神经节。其余的肌丛肾上腺素能神经支配来自骨盆后神经节或骶交感神经链。直肠血管的神经支配来自骨盆后神经节。肾上腺素能神经从骶交感神经链出发，经伴随直肠动脉的神经到达内肛门括约肌。其它通向内肛门括约肌的肾上腺素能纤维，或产生于或穿过后盆腔丛。肛门副肌受产生于骨盆后丛的肾上腺素能轴突支配。在阴部神经中运行的肾上腺素能神经，可能来自骶骨交感神经链，支配阴茎的勃起组织。
The adrenergic innervation of the pelvic viscera was examined by the fluorescence histochemical technique, applied to tissue from untreated guinea-pigs and from guinea-pigs in which nerve pathways had been interrupted at operation. It was found that adrenergic neurons in the inferior mesenteric ganglia give rise to axons which run in the colonic nerves and end in the myenteric and submucous plexuses and around the arteries of the distal colon. In the rectum, part of the innervation of the myenteric plexus and all of the innervation of the submucous plexus comes from the inferior mesenteric ganglia. The rest of the adrenergic innervation of the myenteric plexus comes from the posterior pelvic ganglia or the sacral sympathetic chains. The innervation of the blood vessels of the rectum is from the posterior pelvic ganglia. Adrenergic nerves run from the sacral sympathetic chains and pass via nerves accompanying the rectal arteries to the internal anal sphincter. Other adrenergic fibres to the internal anal sphincter either arise in, or pass through, the posterior pelvic plexuses. The anal accessory muscle is innervated by adrenergic axons arising in the posterior pelvic plexuses. Adrenergic nerves which run in the pudendal nerves, probably from the sacral sympathetic chains, innervate the erectile tissue of the penis.