Unit 2 Nervous System

2. also known as sensory neuron, transmits impulses from the receptors to the CNS.
3. this type of cell forms fatty myelin sheaths around most axons in the PNs only. Also knows as Neurolemmocytes.
7. nervous system that refers to the collection of neurons located throughout the digestive tract
8. 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
10. smooth muscles, skeletal muscles, glands Oligodendrocytes- produce myelin in the CNS
13. two branches of soma
17. controls vital processes
18. nerve cells that send messages all over the body
19. This type of cell lines the ventricles and helps form the choroid plexus
22. regulates passage of molecules from blood to the brain
23. more than two branches
25. a system with rapid activity Endocrine- a system with slow activity
26. clusters of brain cells
27. one branch of soma

1. blank conduction is nerve impulses that jump from node to node as they travel down the axon.
4. brain and spinal cord
5. This structure connects the cell body to the axon
6. This type of cell supports neurons
7. also known as motor neuron, transmits impulses from CNS to effectors Microglia- phagocytic cells that migrate throughout the CNS removing debris|
9. allows axon to conduct impulses faster
11. gap between the axon terminal
12. this type of cell supports neuron cell bodies in the ganglia of the PNS
14. The nervous system provides control for the ____ activities of the body
15. This type of cell ultimately produces Myelin.
16. carry impulses from one neuron to another
20. nerves
21. blank potentials travel the length of the axon, causing the release of neurotransmitters into the synapse. Also known as impulses
24. Nodes of blank are gaps between segments of myelin