The addition of most of the ions resulted in1 The effect of potassium on the heart is2 The ion that had the most pronounced effect on heart rate was3
10/8/19, 7)19 PM PhysioEx Exercise 6 Activity 5Review Sheet Resultsresulting in pacemakers appearing in abnormal locations in the heart muscle. Thishyperkalemia(excess potassium) decreases the resting potential of the cardiac musclecell. What effect do you think this would have on the force of contraction? Page 4 of 4 Describe the effect that increasing the calcium ions had on the heart in this activity. Howwell did the results compare with your prediction?1 Describe the effect that increasing the potassium ions initially had on the heart in thisactivity. Relate this to the resting membrane potential of the cardiac muscle cell. How welldid the results compare with your prediction?2 Describe how calcium channel blockers are used to treat patients and why?3
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- Fall '19