ACTUAL QUESTIONS AND CORRECT
ANSWERS
Neuron - Corrrect answers✔✔Nerve cells that handle information processing at the cellular level
in the brain.
Dendrites - Corrrect answers✔✔Branches that receive signals from other neurons.
Axon - Corrrect answers✔✔Long segment of a neuron which sends information to other
neurons.
Myelin - Corrrect answers✔✔Fatty sheath on some axons that insulates and speeds up neural
transmission.
Terminal buttons - Corrrect answers✔✔At the end of the axon are small knobs that release
neurotransmitters.
NT (neurotransmitter) - Corrrect answers✔✔Chemicals released across the synapse that carry
information between neurons.
Synapse - Corrrect answers✔✔Gap between neurons.
Cerebral cortex - Corrrect answers✔✔Wrinkled surface of the brain; regulates many higher brain
functions.
, Central Nervous System - Corrrect answers✔✔Originates in the prenatal neural plate and
develops around 3 weeks after conception.
Myelination - Corrrect answers✔✔The process where axons start to acquire myelin, continuing
into adolescence.
Synaptic pruning - Corrrect answers✔✔The process where the brain weeds out unnecessary
connections between neurons.
Cerebral hemispheres - Corrrect answers✔✔Right and left halves of the cortex that specialize
early.
Left hemisphere - Corrrect answers✔✔Typically specialized for language as a newborn, showing
more electrical activity in response to speech.
Right hemisphere - Corrrect answers✔✔Typically specialized for the use of metaphors and
humor.
Corpus callosum - Corrrect answers✔✔Fibers that connect the two brain hemispheres.
Brain Development - Corrrect answers✔✔Continued growth in brain areas involved in
reasoning, planning, thinking, memory, and language.
Neurons at birth - Corrrect answers✔✔At birth, the brain has about 100 billion neurons.
First couple years of life - Corrrect answers✔✔The number of dendrites and synapses increase,
making networks of neurons more complex.