 ከወሊድ በኋላ በሚነሳው የመጀመሪያ መርሃግብር ብቻ የልብና የደም ቧንቧ ስርዓት ሙሉ በሙሉ አገልግሎት መስራት ይጀምራል.
The heart and blood vessels are also fully formed as soon as the child will make the first breath of air, they will be included in the overall system of blood flow.