Download Nervous System Crossword Puzzle

Nervous System Crossword Puzzle
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Across
Down
1. part of the PNS associated with skeletal
2. lobe output center, motor, emotions
4. gland endocrine gland found near the center muscle voluntary control of body movements
3. part of the nervous system which consists
of the brain that produces melatonin
of the brain and spinal cord
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 through the afferent
nerve to the CNS synapse and then through
the efferent nerve to the effector organ
14. potential the electrical activity developed
in an excitable cell when stimulated
16. responsible for the integration of complex
sensory and neural functions and the initiation
and coordination of voluntary activity in the
body
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
25. lobe smell and hearing
30. body the factory of the neuron. it produces
all the proteins for the dendrites, axons, and
synaptic terminals and contains specialized
organelles
31. cell forms the epithelial lining of the
ventricles in the brain and the central canal of
the 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
9. transmit impulses from the brain and spinal
cord to the muscles
10. cortex the cerebrum's outer layer of neural
tissue
13. a narrow split or groove that divides the
brain
15. matter mainly composed of axons- white
nerve tissue of the CNS
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
27. a traumatic injury to soft tissue in the
brain
28. convolution on the surface of a cerebral
hemisphere caused by the infolding of the
cerebral cortex
29. neuron neuron that possesses a single axon
and many dendrites, allowing for the
33. a class of cells in the brain and spinal cord
that form a supporting structure for the
neurons and provide them with insulation
34. several fascicles bundled together with a
blood supply and fatty tissue within this
covering
37. of ranvier a thick insulation that has small
breaks
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
57. callosum nerve fibers that join the left and
right hemisphere of the brain
integration of a great deal of information from
other neurons
32. hillock where the axon is joined to the cell
35. crevices in the cortex of the cerebrum that
bound the gyri
36. layer of delicate connective tissue around
the myelin sheath of each nerve fiber
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
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 blood-brain
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 the skin is not broken
58. cell cell of the PNS that wraps around a
nerve fiber, jelly-roll fashion, forming the
myelin sheath
60. the process or act of restoring the
polarized condition across the plasma
membrane of a cell
61. nerve (afferent nerve) nerve that carries
sensory info toward the CNS
62. space space containing cerebrospinal
63. stem posterior part of the brain, adjoining
and structurally continuous with the spinal
cord
64. relays sensory info and acts as a center for
pain perception
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
65. cell any of the cells that envelop the
bodies of nerve cells within the PNS
68. main function is the secretion of melatonin
by the pineal gland; connected with both the
limbic system and the basal ganglia
70. mater though, fibrous membrane forming
the outermost of the 3 coverings of the brain
and 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
75. area associated with the movements
necessary for speech production