The brain
Ms. Hansen and the Explorers are very interested in learning--they want to know everything they can about the human body. But they aren't alone! The Zelmans, Xeni and Zeno, have come from their planet to learn about Earth's beings too! They travel through the nervous system, into the brain, and onto a neuron to learn how the brain works and all the functions it performs. Come along as the Explorers and their favorite guests tour the human brain.
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