2 The ion that had the most pronounced e ff ect on heart rate was Your answer

2 the ion that had the most pronounced e ff ect on

This preview shows page 3 - 4 out of 4 pages.

2 The ion that had the most pronounced e ff ect on heart rate was Your answer: sodium. Correct answer: potassium. 3 Ectopic pacemakers can be caused by excessive leakage of potassium into cardiac cells, resulting in pacemakers appearing in abnormal locations in the heart muscle. This 4
Image of page 3
22/01/2020, 9 : 48 PM PhysioEx Exercise 6 Activity 5 Page 4 of 4 Review Sheet Results hyperkalemia (excess potassium) decreases the resting potential of the cardiac muscle cell. What e ff ect do you think this would have on the force of contraction? Your answer: increase, positive inotropic. Correct answer: decrease, negative inotropic. Describe the e ff ect that increasing the calcium ions had on the heart in this activity. How well did the results compare with your prediction? You did not answer this question. 1 Describe the e ff ect that increasing the potassium ions initially had on the heart in this activity. Relate this to the resting membrane potential of the cardiac muscle cell. How well did the results compare with your prediction? You did not answer this question. 2 Describe how calcium channel blockers are used to treat patients and why? You did not answer this question. 3
Image of page 4

You've reached the end of your free preview.

Want to read all 4 pages?

  • Fall '19
  • session ID

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes