Across
- 3. organisms with a spinal cord are called _____
- 7. membrane that covers outer surface of the brain. lies below the skin
- 8. receives electrical impulses and registers them
- 11. power house of the cells
- 14. comprised of the cerebrum, thalamus and hypothalamus
- 15. present in the forebrain, controls motor and sensory actions
- 16. the duamater, arachnomater, piamater are all membranous coverings of the brain called ____
- 18. control centre of the cell
- 19. part of the brain that links the neural system to the circulatory system. if damaged, the person dies
- 20. site of transmission of impulses
Down
- 1. smallest blood vessels that carry blood to the brain
- 2. synonyms for nerve cells
- 4. cells that detect motion, smell, heat, etc.
- 5. protects the brain
- 6. stimulates the production of growth hormones, present in forebrain
- 9. long extension of the neuron
- 10. short branched extension of a nerve cell
- 12. human body's chemical messengers
- 13. maintains posture and equilibrium
- 17. portion of the brain reponsible for auditory reflexes