Across
- 3. threadlike extension of a neuron that carries nerve impulses toward the cell body
- 5. neuron- a neuron that picks up stimuli from the internal and external environment and converts each stimulus into a nerve impulse
- 6. the part of the brain that intercepts input from the senses,controls the movement of the skeletal muscles, and carries out complex mental processes
- 11. nervous system- the brain and the spinal cord, control center of the body
- 12. a neuron that carries nerve impulses from one neuron to another
- 13. cord- the thick column of nerve tissue that is enclosed by the vertebrae and that links the brain to most of the nerves in the peripheral nervous system
- 14. threadlike extension of a neuron that carries nerve impulses away from the cell body
- 15. nervous system- all the nerves located outside the central nervous system,connects the central nervous system to all parts of the body
- 16. impulse-a message carried by a neuron
Down
- 1. neuron- a neuron that sends an impulse to a muscle,causing the muscle to contract
- 2. part of the brain that coordinates the actions of the muscles and helps maintain balance
- 4. the part of the brain that controls many body functions that occur automatically
- 7. cell that carries messages through the nervous system
- 8. part of the central nervous system that is located in the skull and that controls most functions in the body
- 9. the tiny space between the tip of an axon and the next structure
- 10. an automatic response that occurs very rapidly and without conscious control