Unit 2 Nervous System

2. clusters of brain cells
4. also known as sensory neuron, transmits impulses from the receptors to the CNS.
5. one branch of soma
8. regulates passage of molecules from blood to the brain
10. This type of cell ultimately produces myelin.
11. this type of cell supports neuron cell bodies in the ganglia of the PNS
14. allows axon to conduct impulses faster
17. smooth muscles, skeletal muscles, glands
19. more than two branches
21. nervous system that refers to the collection of neurons located throughout the digestive tract
22. blank conduction is nerve impulses that jump from node to node as they travel down the axon.
24. nerves
27. gap between the axon terminal
28. two branches of soma
30. carry impulses from one neuron to another

1. nerve cells that send messages all over the body
3. also known as motor neuron, transmits impulses from CNS to effectors
6. produce myelin in the CNS
7. The nervous system provides control for the blank activities of the body
9. controls vital processes
12. hillock This structure connects the cell body to the axon
13. This type of cell lines the ventricles and helps form the choroid plexus
15. a system with rapid activity Endocrine- a system with slow activity
16. This structure is a extension of the plasma membrane that increase the surface area available to receive stimuli and transmit stimulation towards the cell body
18. phagocytic cells that migrate throughout the CNS removing debris|
20. This type of cell supports neurons
23. blank potentials travel the length of the axon, causing the release of neurotransmitters into the synapse. Also known as impulses
25. this type of cell forms fatty myelin sheaths around most axons in the PNs only. Also known as Neurolemmocytes.
26. Nodes of blank are gaps between segments of myelin
29. brain and spinal cord