(Cardiac, Inflamm, GI)
Comprehensive Questions with
Verified Answers Graded A+
non-pacemaker phase 0 - Answer: depolarization
what happens during depolarization of non-pacemaker cell - Answer: NA open quickly
non-pacemaker phase 1 - Answer: partial repolarization
what happens during partial Repolarization of non-pacemaker - Answer: K open
non-pacemaker phase 2 - Answer: Plateau
what happens during plateau of non-pacemaker - Answer: L calcium open
non-pacemaker phase 3 - Answer: repolarization
what happens during repolarization of non-pacemaker - Answer: CA close, K open
What is the pacemaker of the heart - Answer: SA node
, Pacemaker phase 0 - Answer: depolarization
Pacemaker phase 3 - Answer: repolarization
Pacemaker phase 4 - Answer: slow depolarization
what happens during depolarization of pacemaker - Answer: L calcium open
what happens during repolarization of pacemaker - Answer: calcium close, K open
hyperpolarization
what happens during slow depolarization of pacemaker - Answer: funny NA open, transient
calcium open
What effect does hypoxia have on non-pacemaker cells - Answer: mimic pacemaker cells
What happens during contraction of a myocyte - Answer: calcium enters and activates
Ryanodine receptors
calcium binds to troponin, moving the myosin filament
Effects of Epi & Norepi - Answer: increases force and rate of contraction
increase in calcium
Affects of acetylcholine - Answer: opens K channels
Class 1a antiarrhythmic drugs do what? - Answer: slow depolarization