Across
- 3. Nervous System Helps regulate involuntary functions, like heartbeats.
- 6. Respiratory Tract Consists of the trachea, bronchi, bronchioles, and the alveoli.
- 7. Air sac in body
- 9. Other word for inhaling
- 10. Matter Contains mostly nerve cell bodies and unmyelinated fibers.
Down
- 1. Nervous System Consists of the brain and spinal cord.
- 2. The space between the two neurons
- 4. Respiratory Tract The part that includes nose, nasal cavity, mouth, pharynx, and larynx.
- 5. Sends messages to other neurons
- 8. Other word for exhaling