The SA Node is the heart's normal pacemaker. When the SA Node depolarizes, electrical signal spreads through the atrial muscle causing contraction.
Explanation:
Inherent rhythmicity / automaticity - The property of the pacemaker cells of the heart to start electrical sequence of depolarization and repolarization.
SA Node or Sino-atrial Node generates the electrical signal.
The electrical signal passes through internodal pathways, atrial fibres, atrioventricular node (AV Node), the bundle of His, Purkinje fibres, right bundle branch, left bundle branch.
Systole - Contraction of cells when the electrical signal of depolarization reaches the contractile cells.
Diastole - Relaxation of cells when the electrical signal of repolarization reaches the myocardial cells.
Either let them know you are there or check your blind spots
Answer:
25
Explanation:
25 elements are known to be essential to life.
Answer:
Lyme disease is the correct answer.
Explanation:
<span>At the very end of it, it divides into two tubes called bronchus, which together they are called a bronchi. which then it connects your trachea to your lungs.
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