Nervous System

2. type of glial cell that forms myelin sheaths in the PNS
4. membranes that protect the CNS and lay between the CNS and bone
7. gland that secretes melatonin
8. photoreceptor protein
11. germ layer that gives rise to nervous tissue
13. the part of the neuron that contain most of the organelles, including the nucleus
15. type of glial cell in the CNS that nourishes and supports neuron function
16. hormone secreted in response to CRH (corticotropin-releasing hormone)
18. cation that is responsible for the negative resting membrane potential
19. type of electric potential that is proportional in strength to the stimulus
20. summation that occurs when the frequency of EPSPs from a single synapse increases
22. lobe in the cerebral cortex that recieves auditory information
25. type of gated channels that open at the nodes of Ranvier
26. a hormone that stimulates the secretion of other hormones
28. color of the matter in the CNS that contains myelinated axons
30. type of electric potential that is initiated by inhibitory neurotransmitters
31. system that contains the amygdala and hippocampus and regulates emotion and memory
33. type of cation that enters into neurons when they are depolarized
35. type of sensory system that uses hair cells
36. part of the hindbrain that regulates balance
37. type of neurotransmitter receptor that indirectly opens ion channels

1. part of the brain that controls basic physiological functions and includes the pons, medulla, and mid-brain
3. Neuronal extensions that recieve information from other cells
5. type of hormonal signaling that occurs between cells that are near each other
6. part of the diencephalon that regulates homeostasis and secretion from the pituitary gland
9. type of charge that is abundantly found on the inner leaflet of the plasma membrane
10. hormones made from cholesterol
12. a bundle of nerves and dendrites in the CNS
14. when the membrane potential becomes even more negative
17. Part of the brain that relays most sensory information (except olfaction) from cranial nerves to cerebral cortex
21. PNS system that controls "rest and digest" functions
23. spinal root that contains motor neuron axons
24. type of cell that has an axon and secretes hormones
27. type of cation that stimulates exocytosis of neurotransmitters at the axon terminal
29. cerebral cortex lobe responsible for most executive functions, including decision making
32. type of photoreceptor cell used to see color
34. types of muscles controlled by the somatic nervous system