CNS & PNC

5. Nerve fibers cross over, left to right and right to left; contains centers to regulate heart, blood vessels, and respiratory system.
9. Nerve cell that is necessary for impulses to be carried throughout the nervous system; parenchyma of the nervous system.
11. Neurotransmitter chemical released at the ends of nerve cells.
13. Coordination of voluntary movements and balance.
14. Brain and spinal cord.
15. Circulates throughout the brain and spinal cord.
16. Microscopic branching fiber of a nerve cell (neuron) that is the first part to receive the nervous impulse.

1. Posterior part of the brain that coordinates muscle movements and maintains balance.
2. Posterior portion of the brain that connects the cerebrum with the spinal cord; includes the midbrain, pons, and medulla oblongata.
3. Body temperature, sleep, appetite, emotions; control of the pituitary gland.
4. Nerves that control involuntary body functions of muscles, glands, and internal organs.
6. Microscopic fiber that is part of a neuron and carries nervous impulse along a nerve cell.
7. Space through which a nervous impulse travels between nerve cells or between nerve and muscle or glandular cells.
8. Relay station for sensory impulses; control of awareness and consciousness.
10. Three protective membranes that surround the brain and spinal cord.
12. Thinking, personality, sensations, movements, memory.