• In turn, the decreased flow and pressure to the kidney will be sensed by baroreceptors in the Juxtaglomerular (JG) Cells of the afferent arteriole. (wikipedia.org)
  • Constriction of the afferent arterioles causes a decrease in the intraglomerular pressure, reducing GFR proportionally. (wikipedia.org)
  • Since the sclerosis of arterioles follows the hypertension by some years, it seems possible that the condition is produced by the hyper- tension per se or by the associated arteriolar spasm. (nih.gov)
  • That is why the pre-capillary arteriole is also called the place of the peripheral resistance. (european-foot-reflexology.com)
  • Many years ago, Baylis made this proposal, and more re- cently Folkow and others have shown that in vessels entirely freed of neurogenic or humoral influences elevation of pressure produce vascu- lar constriction, while reduction of pressure induces peripheral vascular relaxation. (nih.gov)
  • In turn, the decreased flow and pressure to the kidney will be sensed by baroreceptors in the Juxtaglomerular (JG) Cells of the afferent arteriole. (wikipedia.org)
  • Fibrinoid necrosis has been observed in arterioles of kidney, brain, retina, and other organs. (clinicalgate.com)
  • Biop- sies of muscle and also of kidney as well as autopsies in young hypertensives dying of other causes fail to reveal structural changes in the intima of the arterioles. (nih.gov)
  • In the animals who died of severe hypertension, typical arterioloselerotic and arteriolonecrotic lesions were found in the vessels of the opposite or high-pressure kidney, whereas in the low-pressure kidney distal to the clamp the arterioles appeared quite normal. (nih.gov)
  • lor ex- ample, in patients with hypertension second- ary to partial thrombosis or other forms of narrowing of one renal artery, intimal prolifer- ation of arterioles is found in the opposite kid- ney but seldom m the involved kidney. (nih.gov)
  • An afferent pupillary defect is present in 75% of patients, along with enlarging visual field scotomas. (medscape.com)
  • Except in rare instances, as im patients with pheochromocytoma, the cause of the vascular constriction is unknown. (nih.gov)
  • This functional constriction often can be seen in the optic fundi of patients with significant. (nih.gov)