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Full-Text Articles in Veterinary Physiology
Autoregulation Of Cortical Blood Flow In Response To Phenylephrine Induced Hypertension In The Normocapnic And Hypercapnic Cat, Forrest Ritland
Autoregulation Of Cortical Blood Flow In Response To Phenylephrine Induced Hypertension In The Normocapnic And Hypercapnic Cat, Forrest Ritland
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this research was to determine the degree of autoregulation of cortical blood flow in the cat, and to evaluate the usefulness of the heated thermocouple technique for measurement of local cortical blood flow. We determined the relationship between local flow and voltage output from our thermoelectric flow probe by in vitro experiments with an artificial kidney. We measured local cortical blood flow in 17 cats during episodes of phenylephrine-induced hypertension, under conditions of normocapnia and, in some cases, hypercapnia. Arterial blood pressure and voltage output from the flow probe thermocouples were recorded continuously with a Physiograph-six monitor. …
Blood Reservoir Function Of The Fetal Guinea Pig Liver, Gregory A. Roda, Raymond D. Gilbert, Gordon G. Power
Blood Reservoir Function Of The Fetal Guinea Pig Liver, Gregory A. Roda, Raymond D. Gilbert, Gordon G. Power
Loma Linda University Electronic Theses, Dissertations & Projects
To determine of the fetal liver functions as a blood reservoir, we measured liver blood volume under normal conditions and after hemorrhage and volume loading. Nineteen pregnant guinea pig sows and 54 near-term fetuses were injected intravenously with 51Cr-labeled red cells while the fetuses remained in utero. Ninety seconds later a 0.5-1.0 g sample of liver was garroted with a sharp wire into a tared tube with minimal blood loss. A blood sample was taken to measure counts per ml of blood, the fetus killed and the remainder of the liver weighed. Blood volume of the liver and body …