Electrical signals pass quickly from one cardiomyocyte to another through the _________________ of the intercalated discs.
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The shallow depression seen on the external surface of the h…
The shallow depression seen on the external surface of the heart between the left and right ventricles is called the _____________________________.
In a normal ECG, the deflection that is generated by ventric…
In a normal ECG, the deflection that is generated by ventricular repolarization is called the ________________.
What is taken up by the capillaries at their venous end?
What is taken up by the capillaries at their venous end?
When the left ventricle contracts, the ________________ valv…
When the left ventricle contracts, the ________________ valve closes and the _______________ valve is pushed open.
When sodium channels are fully open, the membrane of the ven…
When sodium channels are fully open, the membrane of the ventricular cardiomyocyte ________________________.
The tricuspid valve regulates the opening between the ______…
The tricuspid valve regulates the opening between the _____________________ and the _________________________.
Atrial depolarization causes the _____________________.
Atrial depolarization causes the _____________________.
Which of the following is NOT considered a leukocyte?
Which of the following is NOT considered a leukocyte?
The ____________________ provides most of the calcium ions n…
The ____________________ provides most of the calcium ions needed for myocardial contraction.