Sympathetic regulation of collecting vein

Gero, J; Gerová, M

doi:10.1007/bf02144886

Cited by 10 publications

(8 citation statements)

References 4 publications

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“…As shown in our experiments, the femoral vein was very sluggish in reaction. This result is in agreement with the observations of GERO and GEROVA (1968).…”

Section: Intrasegmental Pressure During Systemic Arterial Pressure Ossupporting

confidence: 94%

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Neurogenic Constriction of the Superior Mesenteric and Femoral Veins during Systemic Blood Pressure Oscillation in Rabbits

Takeuchi

Miyakawa

1979

Jpn.J.Physiol

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“…As shown in our experiments, the femoral vein was very sluggish in reaction. This result is in agreement with the observations of GERO and GEROVA (1968).…”

Section: Intrasegmental Pressure During Systemic Arterial Pressure Ossupporting

confidence: 94%

“…The time delay of the response of the vein to electrical stimulation has already been observed by GERO and GEROVA (1968) in dogs. The femoral vein began to constrict 2 or 3 sec after the beginning of the stimulation and reached a steady state of constriction about 1 min later.…”

Section: Intrasegmental Pressure During Systemic Arterial Pressure Osmentioning

confidence: 68%

Neurogenic Constriction of the Superior Mesenteric and Femoral Veins during Systemic Blood Pressure Oscillation in Rabbits

Takeuchi

Miyakawa

1979

Jpn.J.Physiol

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“…Alternatively, it could be that it is the larger draining veins, which are outside of muscle proper and were not observed in the present study, that are actively influenced by baroreceptor-mediated changes in sympathetic activity and which can have a significant effect at least upon blood volume of whole hindquarters. In accord with this suggestion, it has been shown that larger veins such as the femoral vein and vena cava can be actively influenced by changes in baroreceptor activity (Gero & Gerova, 1968).…”

Section: Venous Vesselsmentioning

confidence: 81%

Direct observations of the effects of baroreceptor stimulation on skeletal muscle circulation of the rat.

Hébert¹,

Marshall²

1988

The Journal of Physiology

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SUMMARY1. In anaesthetized rats, supramaximal baroreceptor stimulation by carotid sinus inflation evoked a reflex fall in arterial pressure and an increase in vascular conductance and flow of muscles of the hindquarters.2. Simultaneously, main arteries, primary and secondary arterioles (13-90 /sm, internal diameter (i.d.)) and terminal arterioles (7-13 ,sm) of the spinotrapezius muscle all showed a diameter increase that reached a peak as arterial pressure neared its zenith; terminal arterioles then showed a diameter decrease to below control level. These responses were abolished by local application of phentolamine or guanethidine to the spinotrapezius, or by crushing the paravascular nerve supply.3. It is suggested that the diameter increases were mediated by reflex inhibition of sympathetic tone, while the secondary diameter decrease in terminal arterioles was induced by a fall in local concentrations of vasodilator metabolites, caused by an increase in muscle blood flow.4. But after sympathetic blockade 25% of all arterial vessesl showed a diameter increase beginning as the fall in arterial pressure neared its zenith. These responses may be attributed to vasodilator metabolites accumulating as a consequence of a reduction in muscle blood flow secondary to the reflex reduction in perfusion pressure.5. No venous vessels, from venules (9-18,m) to main veins (65-130 /sm) that drain the muscle, showed a diameter change in response to baroreceptor stimulation, in accord with evidence that they have no sympathetic supply.6. These results accord with and can provide explanation for changes in blood flow, regional blood volume and capillary filtration evoked by baroreceptor stimulation in studies on whole-limb muscle. They support suggestions that active changes in capacity of venous vessels of muscle play a minor role in the baroreceptor reflex; both active and passive changes in vascular capacity may be due to large veins outside of muscle proper.

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“…Nevertheless part of the constricting effect on small muscular veins may be a humoral effect, due to circulating catecholamines, following intense excitation of the vasomotor centre [18,19]. In contrast, in larger veins such as the femoral veins and the vena cava, active changes can be elicited easily by the carotid sinus mechanism [20][21][22]. From the response of the vessels to electric stimulation of the sympathetic nerves as an index of changes in sympathetic outflow, it appears that a decrease in carotid sinus pressure causes the same increase in nerve traffic to the resistance and capacitance vessels of the splanchnic region but a greater increase in traffic to the limb resistance vessels [18,[22][23][24].…”

Section: Figurementioning

confidence: 99%

Assessment of venous capacitance. Radionuclide plethysmography: methodology and research applications

Schmitt¹,

Blackman²,

Middleton³

et al. 2002

Br J Clin Pharmacol

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Sympathetic regulation of collecting vein

Cited by 10 publications

References 4 publications

Neurogenic Constriction of the Superior Mesenteric and Femoral Veins during Systemic Blood Pressure Oscillation in Rabbits

Neurogenic Constriction of the Superior Mesenteric and Femoral Veins during Systemic Blood Pressure Oscillation in Rabbits

Direct observations of the effects of baroreceptor stimulation on skeletal muscle circulation of the rat.

Assessment of venous capacitance. Radionuclide plethysmography: methodology and research applications

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