منابع مشابه
Autonomic innervation of preretinal blood vessels of the rabbit.
The preretinal blood vessels, that is, blood vessels lying on the inner surface of the retina, were observed by SEM examination using digestion methods, TEM examination and fluorescence histochemical examination using the Falck-Hillarp method. The nerve endings on the preretinal arterioles were distributed from the optic disc to the periphery. The longest nerve terminals from the optic disc to ...
متن کاملCholinergic innervation of human mesenteric lymphatic vessels.
BACKGROUND The cholinergic neurotransmission within the human mesenteric lymphatic vessels has been poorly studied. Therefore, our aim is to analyse the cholinergic nerve fibres of lymphatic vessels using the traditional enzymatic techniques of staining, plus the biochemical modifications of acetylcholinesterase (AChE) activity. MATERIALS AND METHODS Specimens obtained from human mesenteric l...
متن کاملThe "richness" of sympathetic innervation. A comparison of cerebral and extracerebral blood vessels.
The number of adrengeric nerves was quantified, on both cerebral and femoral blood vessels. No difference was found between the two vascular beds. The data failed to establish a "richer" innervation of cerebral vessels. This is in agreement with my previous, extensive, subjective, and unpublished impression. Consequently, the suggestion of others, which ascribes certain features of cerebrovascu...
متن کاملAutonomic innervation of cerebral blood vessels decreases in renal hypertensive rats.
The ultrastructural distribution of the autonomic nerves of brain arteries was investigated in renal (one-kidney, one clip) hypertensive and normotensive Wistar-Kyoto rats. Sympathetic and nonsympathetic nerve terminals were found only in the adventitial layer of brain arteries of renal hypertensive and normotensive rats. In both normotensive and renal hypertensive rats the total nerve endings ...
متن کاملEvidence for Lack of Innervation of /?-2 Adrenoceptors in the Blood Vessels of the Gracilis Muscle of the Dog
Cardiac /S-l adrenoceptors respond to sympathetic nerve stimulation (SNS), but it is not clear that SNS evokes fi-2 adrenoceptor-mediated vasodilation. Sensitivity of B adrenoceptors to catecholamines and to SNS was evaluated in dogs. Norepinephrine (NE) and epinephrine (E) were equipotent vasoconstrictors (femoral artery blood flow or gracilis autoperfusion pressure) before aadrenoceptor block...
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ژورنال
عنوان ژورنال: Quarterly Journal of Experimental Physiology and Cognate Medical Sciences
سال: 1963
ISSN: 0033-5541
DOI: 10.1113/expphysiol.1963.sp001655