Across
- 5. Part of the brain where the spinal cord enters the skull: it controls the body’s vital functions such as breathing, blood pressure and heart rate.
- 7. A nerve fibre that sends nerve impulses away from the cell body.
- 8. nerve cells that carry messages from the CNS to effectors
- 9. Any factor that stimulates a receptor and brings about a response.
- 11. quick automatic actions that protect the body from danger: they are also known as reflexes.
- 12. neurones nerve cells that carry messages from cells in the sense organs to the CNS.
Down
- 1. (CNS) The brain and spinal cord.
- 2. The electrical message carried by a nerve cell.
- 3. The nerve pathway operating in a reflex action.
- 4. The space between two neutrones.
- 6. a nerve cell.
- 10. Muscles or glands that put the message into effect.