Test Review Questions with
expert solutions ( 100%
accurate )
Cell body - answer the cell's life support center that carries out
metabolic functions
Axon terminal - answer the end of an axon which form junctions
with other cells
Dendrite - answer receive messages from cell bodies and other
neurons
Axon - answer transmits messages from the axon terminals to the
dendrites or cell bodies of other neurons and to muscles, glands,
and other parts of the body
Myelin sheath - answer covers axons and helps the impulses
travel faster
Synapse - answer transfers information from one cell to another
Receptors - answer receive signals and initiate a response
, Reuptake - answer process by which neurotransmitters are taken
back into the synaptic vesicles
Resting potential - answer the state of the neuron when not firing
a neural impulse
Active potential - answer the brief wave of positive electrical
charge that passes down the axon
Norepinephrine (NE) - answer oldest known neurotransmitter.
affects alertness, eating, wakefulness and is implicated in
depression
Dopamine (DA) - answer affects movement, attention, learning,
reinforcement, pleasure
Ex: Too much could cause schizophrenia and too little could cause
parkinson's disease.
Acetylcholine (ACh) - answer affects movement, learning,
memory, REM sleep
GABA (gamma-aminobutyric acid) - answer helps with calming of
the nervous system, controls anxiety; also involved in the area of
our brain that controls daily sleep and wake cycles.
Ex: people with anxiety, don't have enough GABA going from cell
to cell.