what occurs at phase zero (slow cell)?
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calcium enters the cell via L-type calcium channels
what is occurring during the TP interval?
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the ventricle passively fill with blood
what would an ECG look like during atrial fibrillation?
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the P waves are absent and the signal is "noisy"
what is occurring during the ST segment?
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the ventricles contract
how would you define stroke volume?
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the volume of blood pumped during each beat, approximately 70 mL
what is occurring during the QRS complex?
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depolarization of the ventricles and a repolarization of the atria
what is capillary oncotic pressure?
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, the force that pushes fluid into the capillary, due to high amount of solutes
within the capillary
what would an ECG look like for complete heart block?
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QRS complexes may be missing and the signal is conducting slowly due to
a blockage
where does the right side of the heart pump blood to?
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lungs (pulmonary)
what do the left coronary artery and right coronary artery supply blood to?
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left supplies blood to left side of heart and the right supplies blood to right
side of heart
what is the name for the valve between the right atrium and the right ventricle?
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, the tricuspid valve (right AV valve)
what is the threshold potential of a fast cell?
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-55 mV
what is the name of the valve between the right ventricle and the pulmonary trunk?
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the pulmonary semilunar valve
what is a funny channel?
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they are activated by repolarization and cAMP. Sympathetic innervation
increases cAMP which binds to funny channels and increases the
probability that they are open. Parasympathetic decreases cAMP, which is
now unbound to funny channels and therefore decreases the probability
that they are open.
where are internodal fibers located?
Give this one a try later!
calcium enters the cell via L-type calcium channels
what is occurring during the TP interval?
Give this one a try later!
the ventricle passively fill with blood
what would an ECG look like during atrial fibrillation?
,Give this one a try later!
the P waves are absent and the signal is "noisy"
what is occurring during the ST segment?
Give this one a try later!
the ventricles contract
how would you define stroke volume?
Give this one a try later!
the volume of blood pumped during each beat, approximately 70 mL
what is occurring during the QRS complex?
Give this one a try later!
depolarization of the ventricles and a repolarization of the atria
what is capillary oncotic pressure?
Give this one a try later!
, the force that pushes fluid into the capillary, due to high amount of solutes
within the capillary
what would an ECG look like for complete heart block?
Give this one a try later!
QRS complexes may be missing and the signal is conducting slowly due to
a blockage
where does the right side of the heart pump blood to?
Give this one a try later!
lungs (pulmonary)
what do the left coronary artery and right coronary artery supply blood to?
Give this one a try later!
left supplies blood to left side of heart and the right supplies blood to right
side of heart
what is the name for the valve between the right atrium and the right ventricle?
Give this one a try later!
, the tricuspid valve (right AV valve)
what is the threshold potential of a fast cell?
Give this one a try later!
-55 mV
what is the name of the valve between the right ventricle and the pulmonary trunk?
Give this one a try later!
the pulmonary semilunar valve
what is a funny channel?
Give this one a try later!
they are activated by repolarization and cAMP. Sympathetic innervation
increases cAMP which binds to funny channels and increases the
probability that they are open. Parasympathetic decreases cAMP, which is
now unbound to funny channels and therefore decreases the probability
that they are open.
where are internodal fibers located?
