What describes the role of the atrio-ventricular node of the heart?
1 )
It causes the muscles of the ventricles to contract from the apex upwards.
It delays the transmission of a wave of electrical activity from the sinoatrial node.
3 )
It initiates a new wave of electrical activity in the ventricles.
4 )
It provides a non-conducting barrier between the atria and the ventricles.
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!
