• Porcine
  • We have recently documented the constitutive expression of arginase-I in porcine coronary arterioles and demonstrated its functional role in modulating coronary microvascular tone under physiological 12 and pathophysiological conditions. (ahajournals.org)
  • diameter
  • Saunders and Knisely (63) found unagglutinated blood flowing at physiologic rates through terminal arterioles as narrow as, depending upon species, from 5 to 7.7 micra in diameter. (ebscohost.com)
  • diameters
  • Arteriole diameters decrease with age and with exposure to air pollution. (wikipedia.org)
  • 1. Measurements of the internal diameters and lengths of branchless segments of mesenteric arterioles of frogs and mice show those geometrically to be cone-shaped, not cylindrical. (ebscohost.com)
  • muscular
  • Arterioles have muscular walls (usually only one to two layers of smooth muscle) and are the primary site of vascular resistance. (wikipedia.org)
  • The muscular contraction of arterioles is targeted by drugs that lower blood pressure (antihypertensives), for example the dihydropyridines (nifedipine and nicardipine), which block the calcium conductance in the muscular layer of the arterioles, causing relaxation. (wikipedia.org)
  • Arterioles are small, muscular branches of arteries. (heart.org)
  • thrombosis
  • On the ascending portion, NaCl and urea are secreted into the interstitium, while water is reabsorbed The slow blood flow in the straight arterioles makes them a likely location of thrombosis in hypercoagulable states, or tissue loss due to erythrocyte sickling in sickle cell disease. (wikipedia.org)
  • Cells
  • Coloured transmission electron micrograph (TEM) of a section through the wall of an arteriole, showing smooth muscle (brown), endothelial cells (green), and an inner and outer lamina (membrane, blue). (sciencephoto.com)
  • Constricting the smooth muscle cells in the afferent arteriole, results in a reduced concentration of chloride at the MD. TGF can stabilizes the fluid and solute delivery into the distal portion of the loop of Henle and maintain the rate of filtration near its ideal value using these mechanisms. (wikipedia.org)
  • smaller
  • These arterioles get progressively smaller the more distanced they are from the heart , as most of the blood supply is required by the major organs positioned close to the heart and is provided by the [[arteries. (biology-online.org)
  • likely
  • Also, if such glands are found in close proximity to a thick-walled, medium or small arteriole , it most likely represents an invasive adenocarcinoma. (thefreedictionary.com)