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Side column

Side column of a spinal cord [columna lateralis – PNA (The anatomic nomenclature Parisian), BNA (The anatomic nomenclature Basel), JNA (The anatomic nomenclature Yenskaya)] – placed between back and front columns, in chest department of a spinal cord the pair side ledge of gray matter including the neurons innervating (connecting with a nervous system) internals.

 
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Was considered earlier that yawning enriches an organism with oxygen. However this opinion was disproved. Scientists proved that yawning, the person cools a brain and improves its working capacity.