Results 151 to 160 of about 455,893 (183)
Some of the next articles are maybe not open access.
The functional morphology of the coronary microcirculation in the dog
Microvascular Research, 1974Abstract Dog hearts were perfused in a Langendorff preparation with whole blood. When beating was established a silicone rubber injectate (Microfil) was added to the perfusion and allowed to flow until it appeared on the venous side of the system. Perfusion was stopped, Microfil allowed to harden, and the specimen cleared. The basic anatomy comprised
J, Grayson +3 more
openaire +2 more sources
The Coronary Microcirculation and Angiogenesis
2007Resistance circulation of the heart is important in regulating the delivery of blood and nutrients to the myocardium. There has been a longstanding interest in studying its properties; however, prior to the mid-1980s, technical limitations made it difficult to directly study coronary microvessels either in situ or in vitro.
Pierre Voisine +5 more
openaire +1 more source
Studies on the coronary microcirculation by direct visualization
The American Journal of Cardiology, 1972Abstract With use of high speed cinematography of the coronary microcirculation, countercurrents and asymmetric capillary arrangement were found. This has far-reaching importance for the oxygenation of the heart muscle and makes doubtful previous calculations for the oxygen transport from the capillary to the surrounding tissue. Recruitment, denoting
K, Hellberg +3 more
openaire +3 more sources
Effects of acute coronary artery occlusion on the coronary microcirculation
American Journal of Physiology-Heart and Circulatory Physiology, 1990The exact microvascular site of coronary vasodilation after coronary artery occlusion has not been clearly established. We sought to determine 1) the microvascular site of recruitable vasodilator reserve after a critical stenosis as assessed by adenosine and EDTA, 2) the coronary microvascular site responsible for vasodilatation after total coronary ...
K C, Dellsperger +3 more
openaire +2 more sources
Coronary microcirculation: autoregulation and metabolic control
Basic Research in Cardiology, 1995The majority of studies examining the regulation of coronary blood flow and vascular resistance have considered the coronary circulation as being composed of large conduit vessels and resistance vessels. Recently, it has become apparent that regulation of coronary microvascular resistance is not distributed uniformly, but varies across different ...
D V, DeFily, W M, Chilian
openaire +2 more sources
Coronary Microcirculation in Ischemic Heart Disease
Current Pharmaceutical Design, 2018Background: Ischemic heart disease has long been considered to be exlusively caused by stenosis or occlusion. However, the coronary microcirculation too may play an important role in ischemic conditions. Also, the crucial role of microvessels in not only regulating blood flow on a local level but also mediating vascular permeability or inflammatory ...
Axel R, Pries +2 more
openaire +2 more sources
Physiology of Coronary Microcirculation
2013In this first chapter of the book, we discuss the functional anatomy and provide an in-depth description of the physiology of coronary microcirculation. The various intrinsic (i.e., vascular) and extrinsic (extravascular) physiologic mechanisms involved in the fine regulation of myocardial blood flow (MBF) are described.
Filippo Crea +2 more
openaire +1 more source
Endocardial Coronary Microcirculation of the Beating Heart
1993Direct and continuous observation of subendocardial (deep myocardial) microcirculation provides essential information on coronary circulation, since cardiac contraction affects subendocardial vessels most vigorously. To achieve this aim, we developed a portable needle-probe video-microscope with a charge-coupled-device (CCD) camera to visualize the ...
F, Kajiya +6 more
openaire +2 more sources
Coronary microcirculation: Physiology and mechanics
Fluid Dynamics Research, 2005Summary: The heart is unique among other organs in that coronary arterial flow is exclusively diastolic and venous outflow is systolic. That is, arterial blood flows into intramyocardial coronary vessels during diastole and the stored blood is squeezed out mostly to epicardial veins and partly to the proximal arteries during the subsequent systole ...
Matsumoto, Takeshi, Kajiya, Fumihiko
openaire +2 more sources