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Virtual Laboratory

Introduction | Control Experiment | Pretreatment Experiment | Self-evaluation Control Experiment Acetylcholine Acetylcholine acts as an agonist of both muscarinic and nicotinic receptors. However, the affinity for muscarinic receptors is much greater than the affinity for nicotinic receptors. Therefore, unless the muscarinic receptors are blocked one almost never observes nicotinically mediated responses following injection of [...]

High BP but Low pulse rate – Heart Disease

Hello, These are tough situations to know for sure. First of all, if your husbands heart rate increases with exercise to an appropriate level (in his case, probably greater than 140-160) with strenuous exercise, his heart rate is fine. Athletes have slow heart rates because of increased vagal tone associated with fitness. This is a [...]