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A sonogram at 10 weeks of gestation demonstrates a cystic area within the posterior cranium. This appearance most likely represents which one of the following?
Current
A directional movement of water, which can be caused by temperature, salinity differences, wind, or tidal forces in the ocean.
Sediment
Particles or fragments of rocks, minerals, or organic materials that have been transported and deposited by wind, water, or ice.
Standing Body
Refers to a body of water, such as a lake or pond, that is contained in a basin and does not flow like rivers or streams.
Moving Water
Water that is in motion, flowing naturally in streams, rivers, or artificially through conduits, often utilized for energy production or irrigation.
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