Nervous System Crossword Puzzle

3. – The long cytoplasmic process of a neuron that transmits impulses away from the soma.
8. – The three protective connective tissue coverings around the brain and spinal cord.
9. – The functional unit of the nervous system, consisting of soma, dendrites, and axon.
14. – Specialized junction where communication occurs between neurons.
15. – Chemical messengers released at synapses for neuron-to-neuron communication.
17. – Ciliated epithelial-like cells lining the brain ventricles and spinal canal.
18. – Branched cellular extensions specialized to receive stimuli.
19. – Dense network of dendrites, axons, and glial processes filling spaces between nerve cell bodies.
20. – Small phagocytic glial cells that act as immune defense in the CNS.

1. – CNS glial cells responsible for producing myelin sheaths.
2. – PNS glial cell that forms the myelin sheath around axons.
4. – Aggregates of neuron cell bodies in the peripheral nervous system.
5. – Small PNS glial cells surrounding neuron cell bodies in ganglia.
6. – Star-shaped glial cells important in forming the blood-brain barrier.
7. – (repeat) Same as clue 1, ventricular lining cells.
10. Cord – Elongated structure of the CNS conducting motor and sensory signals to and from the brain.
11. – Largest part of the brain, responsible for higher functions like thought and memory.
12. – Brain region coordinating movement, balance, and posture.
13. – General term for non-neuronal supporting cells in nervous tissue.
16. Sheath – Insulating multilayered covering formed by glial cells around certain axons.