Chapter 12 - Nervous Tissue

6. This type of neuron sends electrical impulses and transmits them to the central nervous system (CNS)
7. NT that is responsible for emotional responses such as pleasure.
8. Small electrical changes for short-distance communication; can trigger an AP if strong enough.
9. Inhibitory NT for 1/3 of all brain synapses
13. Baseline charge of the nerve cell membrane, at rest.
14. Anything that enhances neurotransmitter effects
15. Star-shaped glial cells that are most abundant and form the blood-brain barrier
17. These glial cells form the myelin sheath around axons in the CNS.
19. Larger electrical change for short- or long-distance communication, triggered by GP.
20. These areas of the brain get their color from myelinated axons
23. Excitatory NT at the Neuromuscular Junction
25. Movement of materials away from the synaptic bulb ends to the cell body
27. A tumor caused by unregulated cell growth of glial cells.

1. These type of impulses jump from node to node on the axon.
2. These glial cells insulate cell bodies in the PNS and regulate nutrient and waste levels.
3. One presynaptic neuron causes GPs repeatedly over time.
4. Occurs when multiple presynaptic neurons cause multiple GP's
5. Return of polarity from positive back to negative.
10. Movement of materials from the cell body to synaptic end bulbs
11. The ability to change with experience or adapt with changes by sprouting new dendrites or synthesis of new proteins
12. The gain of positive charge within a neuron to change the charge of the membrane potential from negative to positive
16. This NT regulates mood, dreaming, and awakening from deep sleep
18. These glial cells monitor neuron health using phagocytic activity
21. Anything that blocks the action of a neurotransmitter
22. This type of neuron transmits electrical signals from the brain and spinal cord to muscles and glands
24. These glial cells produce cerebrospinal fluid (CSF)
26. These glial cells myelinate single axons in the PNS