Question 4 Which statement do you think is most important to convey the signific

Question

Question 4 Which statement do you think is most important to convey the significance of the primordial cardiovascular system development? a. The heart and great vessels form from mesenchymal cells in the cardiogenic area. ob. Paired, longitudinal endothelial-lined channels, the endocardial heart tubes, develop during the third week and fuse to form a primordial heart tube. o c. The tubular heart joins with blood vesels in the embryo, connecting stalk, chorion, and yolk sac. o d. The cardiovascular system is the first organ system to reach a functional state o e. The heart begins to beat about two weeks after the LNMP.

Explanation / Answer

The cardiovascular system is the first organ system to reach a functional state.

The embryonic heartbeat can be detected with the help of Doppler ultrasonography during the fifth week of gestation.

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