1. CNS (central nervous system): Answer brain and spinal cord 2. Meninges: Answer covers the CNS protects and nourishes 3. Subarchnoid space: Answer surrounds brain and spinal cord, filled with cerebrovascularfluid, cushions brain and spinal cords, nourishes CNS, removes waste products 4. Cerebrospinal fluid (CSF): Answer Fluid produced in the ventricles of the brain that flowsin the subarachnoid space and bathes the meninges. 5. Neurons: Answer govern electrical activity throughout sensory and motor neural path-ways 6. Upper motor neurons: Answer motor neurons in the central nervous system that controlthe lower motor neurons in the peripheral nervous system 7. The brain is composed of four major regions:: Answer 1. Cerebrum 2. Diencephalon 3. Brainstem 4. Cerebellum