How Adrenaline and Acetylcholine Affect Heart Rate
Автор: Interactive Biology
Загружено: 2011-03-30
Просмотров: 142088
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In this episode, I discuss the effect of Adrenaline and Acetylcholine on heart rate. Adrenaline speeds it up and Acetylcholine slows it down. They both have their effect by modifying the conductance for ions such as Sodium, Potassium and Calcium across the membrane of the cells of the SA node. Watch the video to find out how :)
➟ Video Chapters
00:00 Intro
00:58 Release of adrenaline from the body
01:18 Effect of adrenaline release in pacemaker cell conductance
01:46 Action potential graph with increased adrenaline release
02:33 Release of acetylcholine from the body
02:46 Effect of acetylcholine release in pacemaker cell conductance
03:07 The action potential graph with increased acetylcholine release
04:03 Summary
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