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/u/lift_fit's posts in /r/askscience

Why Is Epinephrine Used With Lidocaine In Local Anesthesia Rather Than Norepinephrine?

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What Causes The Stimulation That Opens Na+ Channels?

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What Causes Some Ion Channels To Be Selectively Permeable To One Of Na or K, But Not The Other? Something about hydration shells?

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How Do Propagation of Action Potentials, and Automaticity Work?

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How Do Inward-Rectifying Calcium Channels INCREASE "Resting" Potential In Pacemaker Cells?

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Are There Any Demarcations For The Interatrial Septum?

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Help Me Understand Automaticity and Propagation of Action Potentials

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Why Do Schools Often Require You To Memorize The Polyatomic Ions? (NOT A Homework Question)

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What Causes An INITIAL Action Potential, BEFORE It's Propagated?

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When Someone Speaks To You, And You Process The Sound, What's The Bottleneck In That Process?

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