Question

select all that apply
the single heart tube develops into what 4 structures?
primitive atrium
primitive ventricle
bulbus cordis
sinus venosus
inferior vena cava
superior vena cava

Explanation:

In the development of the heart, the single - heart tube gives rise to the primitive atrium, primitive ventricle, bulbus cordis, and sinus venosus. The vena cavae are not direct derivatives of the single - heart tube.

Answer:

primitive atrium, primitive ventricle, bulbus cordis, sinus venosus