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        | The subarachnoid space, lateral ventricles, third and fourth ventricles and the central canal of the spinal cord all contain… |  | Definition 
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        | Which is a part of the brain stem? |  | Definition 
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        | Which of the following is related to the decussation of the pyramids? |  | Definition 
 
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 A. the prefrontal cortex sends signals to the primary motor cortex 
 B. the right cerebral hemisphere sends signals to muscles on the left side of the body |  | 
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        | The occipital lobe detects which sensory signal |  | Definition 
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        | The corpus callosum joins the |  | Definition 
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        | Which of the following is the least important in protecting the brain? |  | Definition 
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        | Place menignes in order from brain surfact to skull |  | Definition 
 
        | Pia mater, Arachnoid, dura matter |  | 
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