Question

What effect would a voltage gated potassium channel blocker have on the pacemaker action potential?A)A potassium channel blocker will decrease the time spent in the plateau phaseA potassium channel blocker will decrease the activity of HCNC A potassium channel blocker will prevent the prepotential phase from occuringD A potassium channel blocker wil prevent the depolarization phase from occuringA potassium channel blocker would delay repolarization

Name: what effect would a voltage gated potassium channel blocker have on the pacemaker action potentialaa potassium channel blocker will decrease the time spent in the plateau phasea potassium ch 39354
Uploaded: 2019-08-19T21:28:03-08:00
Duration: 2 min
Channel: James Thierer
Description: what effect would a voltage gated potassium channel blocker have on the pacemaker action potentialaa potassium channel blocker will decrease the time spent in the plateau phasea potassium ch 39354

          What effect would a voltage gated potassium channel blocker have on the pacemaker action potential?A)A potassium channel blocker will decrease the time spent in the plateau phaseA potassium channel blocker will decrease the activity of HCNC A potassium channel blocker will prevent the prepotential phase from occuringD A potassium channel blocker wil prevent the depolarization phase from occuringA potassium channel blocker would delay repolarization

Added by Charlotte R.

Instant Answer

Solved by Expert James Thierer

08/19/2019

Step 1

Step 1: Identify the phases of a pacemaker (SA node) action potential — prepotential (phase 4) driven by HCN ("funny") channels and T-type Ca2+ currents, depolarization (phase 0) mediated mainly by L-type Ca2+ channels, and repolarization (phase 3) mediated by Show more…

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What effect would a voltage gated potassium channel blocker have on the pacemaker action potential?A)A potassium channel blocker will decrease the time spent in the plateau phaseA potassium channel blocker will decrease the activity of HCNC A potassium channel blocker will prevent the prepotential phase from occuringD A potassium channel blocker wil prevent the depolarization phase from occuringA potassium channel blocker would delay repolarization