Heart part 2
Quiz
•
Biology
•
University
•
Hard
Andrew Corless
Used 3+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Are you here?
yes
no
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ___ is the heart's pacemaker
sinoatrial node
atrioventricular node
atrioventricular bundle
purkinje fibers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In nodal cells, depolarization is due to opening of
voltage gated sodium channels
voltage gated calcium channels
voltage gated potassium channels
chemically gated sodium channels
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the _____ phase of the cardiac action potential, slow voltage gated calcium channels open and calcium enters the cell.
depolarization
plateau
depolarization
resting
5.
MULTIPLE SELECT QUESTION
1 min • 5 pts
The atrioventricular valves are open during which phases of the cardiac cycle? (choose all that apply)
atrial contraction and ventricular filling
isovolumetric contraction
ventricular ejection
isovolumetric relaxation
atrial relaxation and ventricular filling
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The semilunar valves are open during which phase of the cardiac cycle?
atrial contraction and ventricular filling
isovolumetric contraction
ventricular ejection
isovolumetric relaxation
atrial relaxation and ventricular filling
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pressure in the ventricles is highest during which phase of the cardiac cycle?
atrial contraction and ventricular filling
isovolumetric contraction
ventricular ejection
isovolumetric relaxation
atrial relaxation and ventricular filling
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