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Comparative Study of Effect of Epinephrine and Norepinephrine on Cardiovascular System of Turtle, Alligator, Chicken and Opossum.
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1963
Year
NeuropeptidesComparative EndocrinologyCardiovascular ResponsesPhysiological ResearchNeuroendocrine MechanismHealth SciencesAnimal PhysiologyCardiovascular SystemNervous SystemEndocrinologyPharmacologyComparative StudyNeurophysiologyNeuroanatomyPhysiologyElectrophysiologyCentral Nervous SystemMedicineAnimal BehaviorTentative HypothesisPoultry ScienceComparative Physiology
SummaryTurtles, alligators, opossums and chickens were given epinephrine and norepinephrine intravenously and their cardiovascular responses compared. The cardiovascular system of all species seems to be more reactive to epinephrine than to norepinephrine, but to various degrees. A tentative hypothesis, that epinephrine is the neurotransmitter in the opossum and norepinephrine is the neurotransmitter in the chicken, is considered.