In order for the heart to maintain its rhythm, there is a complex excitatory system acting on this organ. One of these structures is known as a natural pacemaker, which works by sending impulses that guarantee the contraction of the heart. Check the alternatives below and mark the one that correctly indicates the name of this region of the heart.
A. Myocardium.
B. Pulmonary valve.
C. sinoatrial node.
D. Interatrial septum.
Answer:C
In order for the heart to maintain its rhythm, there is a complex excitatory system acting on this organ. One of these structures is known as a natural pacemaker, which works by sending impulses that guarantee the contraction of the heart. Check the alternatives below and mark the one that correctly indicates the name of this region of the heart.
A. Myocardium. B. Pulmonary valve. C. sinoatrial node. D. Interatrial septum.