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The Maturing Heart


 

6 semanas, 6 días

Compre ahoraDe La biología del desarrollo prenatal

Guión: The 4-chambered heart is largely complete. On average, the heart now beats 167 times per minute.

Electrical activity of the heart recorded at 7 1/2 weeks reveals a wave pattern similar to the adult's.

Todas las edades en referencia a la fecundación, no al último período menstrual.
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The Maturing Heart
The Maturing Heart
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The External Ear
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