UPRA Exame De Acesso Practice Questions - Universidade Privada De Angola University Entrance Examination (Exames De Acesso UPRA) Exam

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Which natural pacemaker structure in the right atrium rhythmically generates the electrical impulses that establish normal sinus rhythm?

Atrioventricular node (Nódulo auriculoventricular) Bundle of His (Feixe de His) Purkinje fibers (Fibras de Purkinje) Sinoatrial node (Nódulo sinoauricular / Nódulo sinusal)

Correct Answer:

Sinoatrial node (Nódulo sinoauricular / Nódulo sinusal)

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