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BIO 308: Physiology
Lab 26
15
Physiology
Undergraduate 3
02/17/2016

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Cards

Term
during the cardiac cycle, the atria contract:
Definition
before the ventricles
Term
the p-wave in the human electrocardiogram is associated with:
Definition
depolarization of the atria
Term
in the ventricles, the depolarizing phase of the action potential is associated with:
Definition
QRS complex
Term
the AV valves close and produce the 'lub' sound when:
Definition
the ventricles contract
Term
the semilunar valves close and produce the 'dup' sound when:
Definition
the ventricle relax
Term
which component of the ECG coincides w/ depolarization of the ventricles?
Definition
QRS complex
Term
what happens to the pressure of the blood in the ventricle when the ventricle myocardium CONTRACTS?
Definition
the pressure increases
Term
what is the effect of the ventricle contraction (and the increase in the pressure of the blood in the ventricles) on the atrioventricular (AV) valves?
Definition
AV valve close
Term
what creates the 'lub' heart sound?
Definition
closing of the AV valves
Term
when did you record the 'lub' heard sound?
Definition
around the QRS complex
Term
which component of the ECG coincides w/ repolarization of the ventricles?
Definition
T-wave
Term
what happens to the pressure of the blood in the ventricles when the ventricle myocardium RELAXES?
Definition
pressure decreases
Term
what is the effect of the ventricle relaxation (and the decrease in the pressure of the blood in the ventricles) on the semilunar valves?
Definition
semilunar valves close
Term
what creates the 'dup' heart sound?
Definition
closing of the semilunar valves
Term
when did you record the 'dup' heart sound?
Definition
around the T-wave
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