CVS quiz - week 3 - action potentials
Authored by C.E. Quiz
Science, Biology
University
NGSS covered
Used 8+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A and C show
SA node and Bundle of His
Bundle of His and Purkinje fibres
SA node and AV node
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is correct regarding intracellular calcium concentration?
Ca2+ falls to allow cardiomyocyte contraction during systole
Ca2+ rises to allow cardiomyocyte contraction during diastole
Ca2+ rises to allow cardiomyocyte contraction during systole
Ca2+ rises to allow cardiomyocyte relaxation during systole
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
B and D show
SA node and AV node
AV node and Purkinje fibres
Purkinje fibres and Bundle of His
SA node and Bundle of HIs
Tags
NGSS.HS-PS2-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which one of the following statements is correct ?
Noradrenaline speeds-up heart rate by making the pacemaker potential steeper
Acetylcholine speeds-up the heart rate by making the pacemaker potential shallower
Noradrenaline speeds-up heart rate by making the pacemaker potential shallower
Acetylcholine slows heart rate by making the pacemaker potential steeper
Tags
NGSS.HS-LS1-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which is correct regarding the resting membrane potential
Na+ concentration is higher outside the cell
K+ concentration is higher outside the cell
Na+ concentration is lower outside the cell
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