Tubular heart
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The tubular heart or primitive heart tube is the earliest stage of heart development.
Quick Facts Details, Days ...
Tubular heart | |
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![]() Diagram to illustrate the simple tubular condition of the heart. | |
![]() Heart of human embryo of about fourteen days. | |
Details | |
Days | 21 |
Precursor | Splanchnic mesoderm |
Gives rise to | Heart |
Identifiers | |
Latin | cor tubulare |
TE | heart_by_E5.11.1.1.1.0.5 E5.11.1.1.1.0.5 |
Anatomical terminology |
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From the inflow to the outflow, it consists of sinus venosus, primitive atrium, the primitive ventricle, the bulbus cordis, and truncus arteriosus.[1]
It forms primarily from splanchnic mesoderm.[2] More specifically, they form from endocardial tubes, starting at day 21.[3]