Puzzle 2A: The Neuron and Nervous System
Created by Don & Sandy Hockenbury
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Across
2. A neuron has only one of
these
4. This medication is used
to treat Parkinson's
disease
7. Electrically charged
particles
8. Synaptic space between
two neurons
11. When the neuron is
sufficiently stimulated,
this process occurs and
triggers the action
potential
12. Communication point
between two neurons
13. Electrical charge of an
action potential
17. Communication occurs
along these in the
peripheral nervous
system
18. These axons are much
slower than axons coated
with 19 Down
21. Type of message that
increases the likelihood
that a neuron will activate
22. Brain contains receptor
sites for this group of
pain-killing drugs
23. The parasympathetic
nervous system helps
maintain and _____
physical resources
25. What glia means, in
Greek
26. Drug that produces an
exhilarating rush by
interfering with the
reuptake of dopamine
27. Threshold that represents
the minimum level of
stimulation needed to
activate a neuron
Down
1. When a neuron
depolarizes, this rushes
out of the axon
2. This type of potential is a
brief electrical impulse
produced by ions
crossing the axon
membrane
3. These neurons
communicate information
to the muscles and
glands
5. During the resting
potential, a neuron is said
to be this
6. Type of reflex that does
not involve the brain
9. These neurons carry
information from the
specialized receptor cells
in the sense organs
10. Designates the messagesending neuron at the
synaptic gap
14. Duration of an action
potential is measured in
this; thousandths of a
second
15. The neuron's charge
during the resting
potential
16. Nervous system branch
that regulates involuntary
functions
17. Highly specialized cell
that communicates
information in electrical
and chemical form
19. Fat and white, it wraps
around the fastest axons
20. Tiny sacs that hold the
neuron's chemical
messengers
24. Neuroscientists have
studied its very large
neurons
25. Increased by Valium,
Xanax, and alcohol
Puzzle 2B: The Brain
Created by Don & Sandy Hockenbury
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Across
1. For most people, speech
is controlled in this
hemisphere
3. Right hemisphere tends to
dominate when it comes
to recognizing these
5. Each hemisphere divided
into four of these
9. His area is on the lower
left frontal lobe
10. Functional MRI scans can
track changes this
12. Graphic record of brain's
electrical activity
14. Corpus callosum is a thick
bundle of these
15. Theory that differences in
the size and shape of the
skull reflect differences in
a person's abilities and
personality
16. Involved in so many
functions, sometimes
referred to as "the brain
within the brain"
18. Scan that tracks
radioactively tagged
glucose or oxygen
21.
23.
25.
26.
27.
28.
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30.
31.
His discredited theory
helped spark scientific
interest in the idea of
cortical localization
Brain structure involved in
controlling vital reflexes,
such as swallowing,
coughing, sneezing
Dominant hemisphere
when it comes to
deciphering visual and
spatial cues
Midbrain area called
substantia ____ contains
many dopamine-producing
neurons
What pons means
Bombards the brain with
magnetic impulses
Color that indicates high
level of brain activity in
PET scans
Weight of the human
brain, in pounds
Received Nobel Prize for
split-brain research
Down
2. Noninvasive imaging
technique tracks brain
changes in blood flow and
oxygen levels
4. Brain structure that
coordinates movement,
balance, and posture
6. Abbreviation for
hypothalamus area that
regulates sleep-wake
cycles
7. Depending on symptoms,
might be Broca's or
Wernicke's
8. Lobe that contains the
primary visual cortex
11. This type of matter is
found in the cerebral
cortex and is made up of
glial cells and neuron cell
bodies
13. Helps coordinate
movements on the left and
right sides of body
17. Contains substantia nigra
18. Brain ability demonstrated
by juggling study
19. He discovered brain area
involved in understanding
written or spoken
language
20. With 17 Down, makes up
the brainstem
22. Brain structure involved in
fear, anger, and disgust
24. Type of electrodes used to
electrically stimulate the
brain
26. Human brain begins as
this kind of tube