Embryo 54 Day Nervous System and Internal Organs
Computer Generated Image from Micro-MRI, actual size of embryo = 26.0 mm - This image provides a left-sided view of the embryo undergoing its eighth week of development. The age is calculated from the day of fertilization. The primary focus of this image is on the internal organ structures of the embryo. The two major components of the central nervous system, the brain and the spinal cord are highlighted in brown. The three major parts of the brain can be observed. The largest part facing downwards is the forebrain. The narrow segment in the middle is the midbrain. The hindbrain connects the midbrain and spinal cord. The heart is marked in bright red and is situated alongside the lung, marked in orange. The structures below the lung are the stomach ( white ) and kidneys ( red orange. ) The red structure protruding outwards from the embryo is the umbilical cord, which serves as a mechanism for gas exchange, nutrient delivery and waste removal.
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