ANATOMICAL TRAVELOGUE / SCIENCE PHOTO LIBRARY ANATOMICAL TRAVELOGUE / SCIENCE PHOTO LIBRARY
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Three-dimensional visualisation reconstructed from a micro-MRI of an lateral view of an embryo at the end of the eighth week of development. The lungs are the central structures of the respiratory system and begin to form in the middle of the fourth week of development. By the fifty-sixth day of development, the right and left lobes of the lungs of the embryo have formed, as well as branches of the bronchi.
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