True- an involuntary reflex is a reaction that happens when something else occurs. A involuntary reflex is something our body is “programmed” to do automatically.
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The ventricles are the lower chambers of the heart. There are various grooves in the epicardium; these are the sulcuses. The anterior interventricular sulcus is located on the ventral side of the heart and separates the right and left ventricles.
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i see the pics but what do you mean
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