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All about
the Neuron
The Mighty Dodge this
Brain
hodgepodge!
Gnarly
Neurotransmitters
Hugs not
Drugs
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Another name for
a “nerve cell.”
What is a neuron?
The branching part of
the neuron that receives
neurotransmitters from
neighboring neurons.
What is a dendrite?
The part of the neuron
that
conducts an electrical
signal during an action
potential.
What is the axon?
The explosion of
electrical
activity sent down an
axon (when neuron
reaches threshold,
-55 mv)
What is an
action potential?
The substance that
floods into the axon
during an action
potential, generating an
electric current
What is a positive ion
(Na+)?
The part of the brain
responsible for
balance and
coordination
What is the cerebellum?
The two main divisions
of the nervous system.
What are the
central nervous system
and the peripheral
nervous system?
Area of the brain
responsible for thought,
problem solving and
planning.
What is the
frontal lobe?
Connects the right and left
hemispheres of the brain.
What is the
corpus callosum?
Central region of the
brain that receives
sensory signals and
sends them to correct
brain area for processing
What is the Thalamus?
When a NTM attaches to
a receptor, a gate opens
and ____ flow into the
post synaptic cell
What are
ions?
These support
cells help clean
and support
neurons in the
brain
What are glial cells?
The parietal
lobes are ______
to the thalamus
(in a human
brain)
What is superior?
Fatty substance that
coats some axons,
speeding up
transmission of
electrical signals
What is the myelin
sheath?
The preserved sheep
brains we used in
class were missing
this tough exterior
membrane
(meninges)
What is the dura mater?
Name of the gap that
neurotransmitters must
cross to reach
neighboring dendrite.
What is the synapse?
Neurotransmitter
associated with motor
control and reward
pathways in brain.
What is an Dopamine?
Neurotransmitter
associated with
sleep, dreams
depression, and food
cravings
What is serotonin?
Inhibitory
neurotransmitter that has
a calming effect.
What is GABA?
Neurotransmitter that helps
one focus on a task. Too
much attention can make
one startle easily.
What is norepinephrine?
Destructive dopamine
agonist drug that
prevents sleep
(sometimes for days)
and destroys the body
What is
methamphetamine
(meth, crystal)?
Hallucinogenic drugs tend
to work in neural
pathways that release this
NTM
What is serotonin?
Drugs that are addictive
activate the reward and
pleasure pathways, by
manipulating this NTM
What is dopamine?
Any drug or medicine
that decreases a NTMs
activity is called an
What is an
antagonist?
A drug that blocks
reuptake of a NTM
increases its presence in
the synapse, making the
drug an
What is an agonist?