Refer to the figure. Based on the figure, which represents the correct direction of the formation of the heartbeat?
A) 1 $\rightarrow$ 2 $\rightarrow$ 3 $\rightarrow$ 4 $\rightarrow$ 5 $\rightarrow$ 6 and 7
B) 1 $\rightarrow$ 3$\rightarrow$ 6 and 7 $\rightarrow$ 2 $\rightarrow$ 4 $\rightarrow$ 5
C) 1 $\rightarrow$ 6 and 7 $\rightarrow$ 5 $\rightarrow$ 4 $\rightarrow$ 3 $\rightarrow$ 2
D) 1 $\rightarrow$ 6 and 7 $\rightarrow$ 3 $\rightarrow$ 2 $\rightarrow$ 4$\rightarrow$ 5
E) 6 $\rightarrow$ 5$\rightarrow$ 4 $\rightarrow$ 3$\rightarrow$ 2 $\rightarrow$ 7 and 1

Question

Refer to the figure.  Based on the figure, which represents the correct direction of the formation of the heartbeat?
A) 1 $\rightarrow$ 2 $\rightarrow$ 3 $\rightarrow$ 4 $\rightarrow$ 5 $\rightarrow$ 6 and 7 
B) 1 $\rightarrow$ 3$\rightarrow$ 6 and 7 $\rightarrow$ 2 $\rightarrow$ 4 $\rightarrow$ 5 
C) 1 $\rightarrow$ 6 and 7 $\rightarrow$ 5 $\rightarrow$ 4 $\rightarrow$ 3 $\rightarrow$ 2 
D) 1 $\rightarrow$ 6 and 7 $\rightarrow$ 3 $\rightarrow$ 2 $\rightarrow$ 4$\rightarrow$ 5 
E) 6 $\rightarrow$ 5$\rightarrow$ 4 $\rightarrow$ 3$\rightarrow$ 2 $\rightarrow$ 7 and 1

Quizplus · Accepted Answer

According to the figure, the correct direction of the formation of the heartbeat is from node 1 (located in the right atrium) to node 6 and 7 (located in the ventricles), via node 3 (located in the atrioventricular septum) and node 2 (located in the interatrial septum). Choice D correctly represents this direction of the heartbeat formation.

Refer to the Figure →\rightarrow→ 2 →\rightarrow→ 3 →\rightarrow→ 4 →\rightarrow→ 5 →\rightarrow→ 6 and 7 B) 1

Refer to the Figure $\rightarrow$ 2 $\rightarrow$ 3 $\rightarrow$ 4 $\rightarrow$ 5 $\rightarrow$ 6 and 7
B) 1