Download Nervous System Crossword Puzzle

Nervous System Crossword Puzzle
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Across
Down
2. lobe output center, motor, emotions
1. part of the PNS associated with skeletal muscle
voluntary control of body movements
4. gland endocrine gland found near the center of the
brain that produces melatonin
6. the site of transmission of electric nerve impulses
between two nerve cells or between a neuron and an
effector
7. matter grayish nerve tissue of the CNS mainly
composed of nerve cell bodies and dendrite
11. a bundle of nerve fibers
12. arc the route followed by nerve impulses in the
production of a reflex, from the peripheral receptor organ
3. part of the nervous system which consists of the brain
and spinal cord
4. mater delicate innermost layer of the meninges, the
membranes surrounding the brain and spinal cord
5. system a group of deep brain structures, including the
hippocampus, amygdala, gyrus fornicatus, and
connecting structures, associated with emotion,
motivation, behavior, and various autonomic functions
8. terminal contain neurotransmitters of various kinds
through the afferent nerve to the CNS synapse and then
through the efferent nerve to the effector organ
9. transmit impulses from the brain and spinal cord to the
muscles
14. potential the electrical activity developed in an
excitable cell when stimulated
10. cortex the cerebrum's outer layer of neural tissue
16. responsible for the integration of complex sensory and
neural functions and the initiation and coordination of
voluntary activity in the body
15. matter mainly composed of axons- white nerve tissue
of the CNS
19. carry info from the outside world, such as sensations
of heat, cold, and pain to the brain and spinal cord
20. part of the nervous system that is outside the brain
and spinal cord. the nerves connect the CNS to sensory
organs and to other organs of the body, muscles, blood
vessels, and glands
23. the 3 membranes (the dura mater, arachnoid, and pia
mater) that lines the skull and vertebral canal and enclose
the brain and spinal cord
24. gland called the master gland because it produces
hormones that control other glands and many body
functions including growth
13. a narrow split or groove that divides the brain
17. a nerve ending specialized to sense or receive stimuli
18. nerve carries command info out of the CNS toward
effectors that will execute the commands
19. mater delicate fibrous membrane forming the middle
of the 3 coverings of the central nervous system
21. a bundle of fibers that uses electrical and chemical
signals to transmit sensory and motor info from one body
part to the other
22. part of the nervous system responsible for control of
the bodily functions not consciously directed, such as
breathing, the heartbeat, and digestive processes
26. branch out and receives signals from the nerve cells
25. lobe smell and hearing
27. a traumatic injury to soft tissue in the brain
30. body the factory of the neuron. it produces all the
proteins for the dendrites, axons, and synaptic terminals
and contains specialized organelles
28. convolution on the surface of a cerebral hemisphere
caused by the infolding of the cerebral cortex
31. cell forms the epithelial lining of the ventricles in the
brain and the central canal of the spinal cord
29. neuron neuron that possesses a single axon and
many dendrites, allowing for the integration of a great
deal of information from other neurons
33. a class of cells in the brain and spinal cord that form a
supporting structure for the neurons and provide them
with insulation
32. hillock where the axon is joined to the cell
34. several fascicles bundled together with a blood supply
and fatty tissue within this covering
36. layer of delicate connective tissue around the myelin
sheath of each nerve fiber
37. of ranvier a thick insulation that has small breaks
38. part of the brainstem just above the pons; contains
nerve pathways between the cerebral hemispheres and
the medulla oblongata as well as nuclei; the center for
visual reflexes such as moving the head and eyes
39. NS part of the autonomic nervous system and tends
to depress secretion, decrease the tone and contractility
of smooth muscle, and increase heart rate
42. cortex responsible for memory, brooch's area,
recognition
43. nerves mixed nerve, which carries motor, sensory,
and autonomic signals between the spinal cord and the
body; there's 31 pairs
46. barrier a layer of tightly packed cells that make up the
walls of the brain capillaries and prevent substances in
the blood from diffusing freely into the brain: passage
across the cell membranes is determined by solubility in
the lipid bilayer or recognition by a transport molecule
52. located throughout the brain and spinal cord, they act
as the first and main form of active immune defense in
the CNS
53. nerve nerves composed of both motor and sensory
fibers, and transmit messages in both directions at once
54. a specialized, impulse-conducting cell that is the
functional unit of the nervous system
55. surround and insulate the long fibers (axons) through
which the nerves send electrical messages
56. coordinates both the autonomic nervous system and
the activity of the pituitary, controlling body temp, thirst,
hunger, and other homeostatic systems, and involved in
sleep and emotional activity
35. crevices in the cortex of the cerebrum that bound the
gyri
40. links the medulla oblongata and the thalamus
41. the process of combining info from many sources. the
nervous system combines info from the different senses
44. posterior part of the forebrain, containing the
epithalamus, thalamus, hypothalamus, and ventral
thalamus and the third ventricle
45. star-shaped connective tissue cells of the nervous
system that link nerve cells to blood vessels and, by
wrapping round brain capillaries, help to form the bloodbrain barrier
47. fluid produced in the choroid plexuses of the
ventricles of the brain sound in the brain and spine
48. fatty white substance that surrounds the axon of some
nerve cells, forming an electrically insulating layer
49. any of the sensory nerve endings that give info
concerning movements and position of the body
50. NS part of the involuntary nervous system that serves
to slow the heart rate, increase intestinal and glandular
activity, and relax the sphincter muscles
51. sense organ a nerve ending specialized to sense or
receive stimuli
59. an injury in which the subsurface tissue is injured but
57. callosum nerve fibers that join the left and right
hemisphere of the brain
58. cell cell of the PNS that wraps around a nerve fiber,
jelly-roll fashion, forming the myelin sheath
the skin is not broken
65. cell any of the cells that envelop the bodies of nerve
cells within the PNS
60. the process or act of restoring the polarized condition
across the plasma membrane of a cell
68. main function is the secretion of melatonin by the
pineal gland; connected with both the limbic system and
the basal ganglia
61. nerve (afferent nerve) nerve that carries sensory info
toward the CNS
70. mater though, fibrous membrane forming the
outermost of the 3 coverings of the brain and spinal cord
62. space space containing cerebrospinal
63. stem posterior part of the brain, adjoining and
structurally continuous with the spinal cord
74. oblongata the continuation of the spinal cord within
the skull, forming the lowest part of the brainstem and
containing control centers for the heart and lungs
64. relays sensory info and acts as a center for pain
perception
75. area associated with the movements necessary for
speech production
66. may result from an increase in the permeability of the
cell membrane to sodium ions
67. the cell that connects sensory and motor pathways for
reflexes
69. abnormal buildup of the cerebrospinal fluid in the
ventricles of the brain
71. lobe sight
72. a polarized nerve cell
73. function is to coordinate and regulate muscular
activity
76. protective sheath around each fascicle
77. nerves each of twelve pairs of nerves that arise
directly from the brain and pass through separate
apertures in the skull