Across
- 3. minimum level of a stimulus that is required to cause an impulse
- 6. carry impulses from the brain and the spinal cord to muscles and glands
- 7. point at which a neuron can transfer an impulse to another cell
- 8. process information from sensory neurons and then send commands to other interneurons or motor neurons
- 10. network of nerves and supporting cells that carries signals into and out of the central nervous system
- 14. insulating membrane surrounding the axon in some neurons
- 15. the basic unit of the nervous system
Down
- 1. long finer that carries impulses away from the cell body of a neuron
- 2. includes the brain and spinal cord; processes information and creates a response that it delivers to the body
- 4. extension of the cell body of a neuron that carries impulses from the environment or from other neurons toward the cell body
- 5. electrical charge across the cell membrane of a resting neuron
- 9. largest part of a typical neuron; contains the nucleus and much of the cytoplasm
- 11. reversal of charges across the cell membrane of a neuron; also called a nerve impulse
- 12. chemical used by a neuron to transmit an impulse across a synapse to another cell
- 13. carry impulses from the sense organs to the spinal cord and brain