Answer:
Do you have pic on your exam
Answer:
Option-D
Explanation:
The myocardial cells form the cardiac muscle present in the heart. The heart receives its signal from the autonomic nervous system but not all the cells receive the signals.
The SV and AV node present in the upper heart produces the potential for the contraction. The action potential gets transferred through the cell and finally reach the lower ventricle through Purkinje fibres.
This allows the contraction of both the ventricles simultaneously and sows that the heart cells contract simultaneously.
Thus, Option-D is the correct answer.
Answer:
It depends on what type of virus it is but you should be fine as long as you didn't make contact with them like using the same spoons or forks and stuff like that if its one of those viruses but some of them can be air born
Explanation:
Answer:
At the same time sodium channels open, gK + and outward directed K + currents fall as potassium channels close. These two conductance changes move the membrane potential away from E K (which is negative) and closer toward the equilibrium potential for sodium (E Na), which is positive.
Explanation:
Hope this helps you