Nervous Tissue

2. Autoimmune disease affecting neuromuscular junctions, which weakens the muscle response to the nerve stimuli. (combined with #12 Down)
5. System that encompasses all the nerves that branch out from the CNS to reach the rest of the body.
9. The anterograde movement of materials from the cell body to the axon terminal, often mediated by motor proteins.
11. Glial cells that line the ventricles of the brain and the central canal of the spinal cord, producing cerebrospinal fluid.
13. Glial cells in the central nervous system that act as immune cells, removing cellular debris and pathogens.
14. System that refers to the brain and spinal cord.
17. A neuron with a single process that branches into two, functioning as both an axon and a dendrite.
18. Virus enters the synaptic terminal and via retrograde axonal transport it reaches the body of the motor neuron in the CNS and is ready to spread to other neurons.
20. -matter found in myelinated axons and glial cells.
21. (Combined with #3 Down) gaps in the myelin sheath that allows depolarization of the membrane in a single direction.
22. The retrograde movement of materials from the axon terminal to the cell body, often mediated by motor proteins.

1. Glial cells in the central nervous system that wrap around axons to form myelin sheaths.
3. The name of the spaces between adjacent Schwann cells where you see a high concentration of sodium. (combined with #20 Across)
4. A neurotoxin protein that prevents Acetylcholine release from synaptic vesicles.
6. A neuron with one axon and one dendrite, often found in sensory systems like the retina.
7. Glial cells that surround neuron cell bodies in the peripheral nervous system, providing support and protection.
8. -matter found in neuron bodies and unmyelinated fibers.
10. A neuron with multiple dendrites and a single axon, the most common type of neuron in the nervous system.
12. Autoimmune disease characterized by extreme muscle weakness. (combined with #2 Across)
15. A toxin that blocks Acetylcholine receptors.
16. Glial cells that wrap around axons in the peripheral nervous system, forming myelin sheaths.
19. Star-shaped glial cells in the central nervous system that provide structural support, regulate the chemical environment, and contribute to the blood-brain barrier.