Lonestar Pharmacolog
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Heart Rate
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| What is Inotropy? | show 🗑
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| show | Speed of Conduction
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| show | Increase in the Rate of impulse generation at the SA node.
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| What is Positive Inotropy? | show 🗑
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| show | Slowing conductivity through the AV node.
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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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| show | Slow Potentials (Since SA rate is faster than the AV node it over-rides the rate)
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| Where are Fast Potentials located? | show 🗑
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| What is Phase 0 in Fast Potentials? | show 🗑
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| What is Phase 1 in Fast Potentials? | show 🗑
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| show | Calcium ions (Ca++) enter the cell and cause a plateau (maintaining the positive charge).
This delays repolarization -- important for muscle contraction.
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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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| show | Acetycholine
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| What is the Sympathetic/Adrenergic Primary Neurotransmitter? | show 🗑
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| show | Parasympathomimetic
Cholinergic
Parasympathetic Agoinst
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| show | Parasympatholytic
Anticholinergic
Parasympathetic Antagonist
Cholinergic Blocker
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| show | Sympathomimetic
Adrenergic
Sympathetic Agonist
Alpha Agonist
Beta Agonist
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| show | Sympatholytic
Antiadrenergic
Sympathetic Antagonist
Alpha Blocker
Beta Blocker
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| Phase 2 of Fast Potentials is called what? | show 🗑
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| show | Because the Ions are all in the "wrong place".
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| Phase 3 of Fast Potentials is called what? | show 🗑
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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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| show | Slow it down.
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| show | Atropine
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| What is the heart's dominant pacemaker? | show 🗑
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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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| What is the primary ion inside the cell? | show 🗑
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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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