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Offers clinicians a concise anatomical reference for conduction assessment; leaves open the specialized cells versus internodal tracts debate.
Normal anatomic and histologic features of the sinus node, atrial myocardium, and interatrial conduction of the cardiac impulse are reviewed. The controversy surrounding atrial conduction via specialized atrial cells versus specific internodal tracts (between sinus and atrioventricular nodes) is discussed.
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Waller et al. (1993) studied this question.
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