Nervous Tissue

2. In the peripheral nervous system, Schwann cells are neuroglia cells that_______neuronal function by increasing the speed of impulse propagation.
6. The axon is surrounded by a whitish, fatty layer called the_______sheath.
7. Dendrites are extensions, or processes, of the_________that carry impulses to the cell body.
10. It stimulates________contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning.
11. The cell body is like a_______for the neuron.
14. Outside the myelin sheath there is a cellular layer called the________.
15. Supporting, or glia, cells bind neurons together and_______the neurons.
18. Dendrites are responsible for responding to_______.
19. irritability and conductivity are their two major________characteristics.
20. Nervous tissue responsible for coordinating and________many body activities.

1. The axons are responsible for transmitting impulses over_______distances from cell body.
3. Nervous tissue also includes cells that do not________impulses, but instead support the activities of the neurons.
4. The main part of the cell, the part that carries on the_________functions, is the cell body.
5. There are_______types of neuroglia.
8. The Schwann cells are underlain by the_______sheath.
9. _______are highly specialized nerve cells that generate and conduct nerve impulses.
12. nervous tissue contains_______categories of cells.
13. integration and________are the two major functions of nervous tissue.
16. _______are supporting cells that provide physical sport, remove debris, and provide electrical insulation.
17. A typical neuron consists of dendrites, the cell body, and an_______.
21. The medullary sheath is interrupted at intervals by the_______of Ranvier.