Other questions in this quiz

2. Which one of the following components of an ECG represents the time during which ventricles are relaxing and filling?

  • the TP segment
  • the RR interval
  • the PQ interval
  • the ST segment

3. In cardiac muscle, action potentials spread through the cells because of electrical coupling through:

  • gap junctions
  • tight junctions
  • desmosomal junctions
  • adherens junctions

4. The sympathetic nervous system increases heart rate by:

  • opening K+ channels and closing funny channels
  • opening T-type Ca2+ channels and opening funny channels
  • closing K+ channels and opening funny channels
  • closing T-type Ca2+ channels and closing K+ channels

5. How many leads are used for a full ECG?

  • 3
  • 12
  • 9
  • 15
View more questions

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Genetics resources »