Answer:
option D: produced its own contractile cycle
Explanation:
option D: produced its own contractile cycle
Autorhythmicity referred to that capability of cells of cardiac muscles that help to beat heart regularly and rhythmically. It is due to that potential which is produced by cells of cardiac muscles. these cells does not required stimulation to beat heart.
autorhythmic cells are generate at sinoatrial and atrioventricular nodes.
The most important world event in 1792 was the French Revolution.
In August of 1792, revolutionaries stormed the Tulieries Palace and arrested Louis XVI.
Louis and his wife would later be executed, ending the monarchy in France for a time.
<span>A race between candidates for elective office is called a campaign.</span>
