Laboratory Review 17 1. Is the sclatic nerve part of the central nervous system

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Laboratory Review 17 1. Is the sclatic nerve part of the central nervous system or the peripheral nervous system? 2. What part of the brain is divided into right and left bemispheres? 3. What portion of the beain looks like a tree in cross section? 4. What is the most pasterior portion of the brain stem? s What cerebral lobe is associated with the sense of vision? 6. What structures protect the spinal cord? 7. What makes the white matter of the spinal cord appear white? 8. What type of neuron is found completely within the central nervous system 9. What type of neuron is responsible for transmitting nerve impulses from the spinal cord to an effector? 10. What part of the eye refracts and focuses light rays? 11. What part of the ear contains the sensory receptors for hearing? 12. What is the anatomical name for the eardrum that picks up sound waves? 13. What layer of the skin contains Meissner and Pacinian corpuscles? 14. What are the names of the chemoreceptors that respond to molecules in air and water? Thought Questions 15. Explain why people who develop cataracts (cloudy eye lenses) require surgery to implant new lenses. 16. When you stared at the dark cross with your left eye, why did the dark circle "disappear" from view as you moved the illustration toward you? 17. In a drag race, drivers must wait until the green light is illuminated before they can move their vehicle. Explain wh time delay exists, based on the information presented in this exercise.

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