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Lonestar Pharmacolog

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show Heart Rate  
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show Contractility (Stroke Volume)  
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What is Dromotropy?   show
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show Increase in the Rate of impulse generation at the SA node.  
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show Increased contractility (Increased Stroke Volume)  
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What is Positive Dromotrope?   show
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show Decreased contractility (Decreased Stroke Volume)  
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show Decrease in the Rate of impulse generation at the SA node.  
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What is Negative Dromotrope?   show
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show Sodium Influx  
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What influx Causes Slow Potentials?   show
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show Located in two dominant pacemaker cells of the heart, the SA and AV nodes.  
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Where do Calcium Channel Blocker medications take effect?   show
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What is responsible for spontaneous generation of impulses in the SA and AV node?   show
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show Occur in myocardial tissue (muscle) and the ventricular conduction (electrical)system.  
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show Rapid depolarization due to rapid sodium channels opening (Na+ Influx), inside of cell becomes more positive.  
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show Slow Potassium channels open (K+ Efflux), this marks the start of repolarization.  
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What is Phase 2 in Fast Potentials?   show
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What is Phase 3 in Fast Potentials?   show
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What is Phase 4 in Fast Potentials?   show
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What is the Parasympathetic/Cholinergic Primary Neurotraansmitter?   show
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show Norepinephrine  
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List Three Parasympathetic/Cholinergic stimulant terms.   show
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show Parasympatholytic Anticholinergic Parasympathetic Antagonist Cholinergic Blocker  
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List Five Sympathetic/Adrenergic Stimulant Terms.   show
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show Sympatholytic Antiadrenergic Sympathetic Antagonist Alpha Blocker Beta Blocker  
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show Absolute Refractory Period  
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show Because the Ions are all in the "wrong place".  
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show Relative Refractory Period  
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show This means the if the heart were in a dysrhythmia the Relative Refractory Period is the best time to start an action potential to fix the rhythm.  
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show By the slow influx of Ca++ (slow Ca++ channels)  
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Where do Calcium Channel Blockers take effect?   show
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Where do Abnormal heart rhythms arise from?   show
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What are the most common heart dysrhythmias?   show
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What would excessive parasympathetic stimulation do to the heart?   show
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show Atropine  
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show Sinoatrial (SA)node  
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Which myocardial tissue has the ability to create its own electrical impulse (automaticity)?   show
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show More positive ions outside the cell than inside. This is why the cell has a slight negative charge.  
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show Na+ Sodium  
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show K+ Potassium  
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show Calcium Ca++  
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Created by: raydef44
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